International Mathematical Olympiad Scores

This site presents the results of past International Mathematical Olympiads, with statistical analyses, in a uniform format. The following years’ results are available:

1977 (Belgrade, Yugoslavia) (scores on individual questions unavailable)
1982 (Budapest, Hungary)
1983 (Paris, France) (scores on individual questions unavailable)
1987 (Havana, Cuba)
1988 (Canberra, Australia)
1989 (Braunschweig (Brunswick), West Germany)
1990 (Beijing, China) (scores on individual questions unavailable)
1991 (Sigtuna, Sweden)
1992 (Moscow, Russia)
1993 (Istanbul, Turkey)
1995 (North York (Toronto), Canada)
1996 (Mumbai (Bombay), India)
1997 (Mar del Plata, Argentina)
1998 (Taipei, Taiwan)
1999 (Bucharest, Romania)
2000 (Taejon, South Korea)
2001 (Washington DC, USA)
2002 (Glasgow, United Kingdom)
2003 (Tokyo, Japan)
2004 (Athens, Greece)
2005 (Merida, Mexico)
2006 (Ljubljana, Slovenia)
2007 (Hanoi, Vietnam)
2008 (Madrid, Spain)

In order to represent all the accents and diacritical marks on the names of contestants, these pages are UTF‐8 encoded, so may need a fairly recent browser for all the characters to display properly.

This is not an official site; there is substantial overlap between the data presented here and that on the official site.

I have results for 1984, 1985 (with handwritten corrections) and 1986 (missing names for non‐medallists) pending to go online when I get time, and hope to make available the original lists (scans or data from IMO websites) in due course, as well as lists of the known discrepancies in these lists. See also other sites with (sometimes partial) results for various years, such as the new central IMO site and the IMO Compendium.

I’d like to extend this back to years not yet included by scanning in the printed results lists (or, if necessary, typing in handwritten lists). Please let me know if you can send me copies of these older results lists. I’d be interested in the following:

Any lists from years not yet included that give results of each contestant (by contestant code) on each problem, whether or not they include contestant names (though names are desired if available). Failing lists with results on each problem, I am also interested in lists with contestant names but without scores on individual problems. (Along with results lists, I’d also like lists of the correspondences of country codes to country names if available, if country names are not given in the results lists, and details of medal boundaries if medals are not noted in the results lists, although in most cases I can probably deduce this information from other sources. I’m also interested in lists of country codes and names on their own if you don’t have the corresponding results lists to go along with them.)
Any more accurate correspondence of contestant names to codes from 2005; that in the official report has proved incorrect for those from the Czech Republic and Costa Rica.
Any contemporaneous lists (with names or scores on individual questions) from 1993; the information I have for 1993 comes from the later commemorative book of that IMO and there are various inconsistencies in the tables in that book I would like to check with another source.
Any lists from 1992 differing from that included here; one score and some names of Estonian contestants on that list were found to be wrong and needed to be corrected, and some typos which have been corrected in the names tend to suggest that the list may be retyped rather than original.
Details of the students on the North Korean team (disqualified for cheating) in 1991, and of that team’s country code; the list of results I have for 1991 excludes the disqualified team, so the figures given here for 1991 have one country and six fewer students than may be reported in other sources that include the team which participated but was disqualified.
Any reasonably legible list for 1990; the legibility of the list I have is poor for scores above 13, some names especially for contestants scoring 18 are largely guesswork and the name of one Mexican contestant is entirely missing at the bottom of a page. Any list for 1990 with scores on individual problems. Any list for 1990 with numeric contestant codes within countries; the list I have only gives a country code for each contestant.
Any additional forenames for 1989; the information I have for 1989 comes from a list of all results with contestant surnames only together with the commemorative book of that IMO which has forenames but includes results for award‐winners only, plus some additional forenames from an unofficial compilation and various other contributions.
Any list from 1987 with contestant names; the information I have is from a list of scores only copied by hand by a contestant. Any other lists from 1987; there are some slight discrepancies between the one I have and statistics from the UK Leader’s report from that year, with no particular reason to prefer one over the other.
Any lists from 1983 with scores on individual problems.
Any lists from 1982 differing from that included here, or with the names listed directly by their scores; I have a list of scores by contestant code, and a list of names by contestant code, but the ordering of the East German team in the latter list has been found to be wrong and needed to be corrected; the ordering of the Belgian team has also needed to be corrected and the correct ordering of the Flemish part of that team has not been confirmed.
Any list from 1977 with the two missing names of Finnish contestants (missing between the bottom of page 6 and the top of page 7 in the photocopy I have of part of the commemorative book of the 1967 and 1977 IMOs). Any list from 1977 with scores on individual problems.

Country Positions, Alphabetical Order

The following table shows the positions of each country each year in the unofficial mark ordering, sorted by alphabetical order of country name.

Country	1977	1982	1983	1987	1988	1989	1990	1991	1992	1993	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008
Albania										66		67=	71=		66=	75	72	70=	70=	55=	60	50=	58=	68
Algeria	21	27=	30	36	36		54	53		72=			82
Argentina					45=		38=	27=	32	42=	29	29	37=	29	45	25	22=	31	28=	39	46	30=	47	39=
Armenia										28=	32=	34=	34=	26=	39=	20=	53	67	43=	36	33=	36=	48=	66
Australia		20=	19	15	17	22=	15=	20	19	13	21=	23	9	13	15	16	25	26	26=	27	25	26	22	19
Austria	12	16	22	13	15	24	15=	18=	31	22	43	42	43	48	29=	39	55	56=	59	59=	40=	42	42	57
Azerbaijan										52=	64	58	55	54	66=	64=	73	65	40	47	49	48=	52=	48=
Bahrain							40=	55		68=
Bangladesh																					85=	80	80	75
Belarus										38	26=	21	17	19	6	7	12	14=	19=	13	18	23	19	26
Belgium	19	24	26	25	23	27		22	23	37	47	31	41=	39	54=	53=	68=	52=	37=	42=	40=	52=	45	59=
Bolivia													74								91	86=	93	95=
Bosnia-Herzegovina										71	69	57	62	33=	43=	29=	51	62	43=	70	55=	41	52=	50=
Brazil		20=	20	19	38	36=	24	37=	39	34	44	52	26	30=	29=	48=	16	21=	26=	21=	33=	29	24	16
Brunei																81=
Bulgaria	6	9	9	7	8	7	9	7	15	3	6	11=	7=	2	5	5=	4=	4	1	5	11	21	9=	14
Cambodia																							82	83
Canada		17	14	16	10	19	11	14	22	18=	19	16	29	20	31=	17	24	12=	12=	21=	19	15=	27	22
Chile											70	71	66										92	69
China				8	2=	1	1	2	1	1	1	6	1		1=	1	1	1	2	1	1	1	2	1
Colombia		26	28	29	26	22=	30	26	35	26=	38	46	27	41	49=	44=	42	37	39	29	27=	50=	30	45
Commonwealth of Independent States									4
Costa Rica																					65=	78=	72	55=
Croatia										55	32=	34=	24	22=	41=	34=	35	45	33	40	33=	54	46	38
Cuba	18	25	24	24	40	33=	38=	34	55	36	55	66	40	67	27=	44=	26	39	76	78	52		87	81
Cyprus				33	47	48	48=	52	48		58=	69	80	56	64=	64=	34	68	70=	63=	77	81	69	71=
Czech Republic										10	17=	28	18	15	49=	42	45	28	34	34	16	48=	40	39=
Czechoslovakia	9	7	8	9	12	6	8	11	13
Denmark								43	41=	32	49	48=	57=	66	54=	61	68=	55	66	68	44	69	65	54
East Germany	8	3=	12	4	7	4	7
Ecuador					49											74	83	82	77	81	74	70=	74=	82
El Salvador																					70	78=	74=	76=
Estonia										56	56	55	53=	43	69	58	37	40=	54	44	45	44=	57	73
Finland	16	8	13	26=	27=	40	43	40=	49	52=	36=	39	34=	63	43=	52	63=	38	55=	63=	55=	39	61	74
France	14	15	10	12	9	13	5	13	10=	17	30	36	32=	26=	33=	48=	28	19	24	38	32	28	43=	30
Georgia										26=	48	30	28	36	38	36	38=	34	32	28	37	33=	26	42
Germany								4	7	2	15	10	13	16	17	20=	14	10	17=	25	12	4	15	20=
Greece		23	17	20	27=	20=	42	33	45=		54	22	45	32	47=	56	30	47	30=	26	50	56	33	39=
Guatemala													79		75	79=	76	81			83			90=
Honduras																								89
Hong Kong					24	17	22	29=	26=	33	20	27	30=	25	33=	28	19=	24	28=	30	17	14	12=	28
Hungary	3=	6	3	6	16	10	6	6	8=	8	5	3	2	3=	11	9	21	12=	10=	7	9=	17	16	10
Iceland				32	39	46	53	50=	56	64	68	56	60=	52=	60=	60	74	66	62=	72	71	59=	73	76=
India						25	17	10	21	15=	14	14	15	7	18	14	7	9	15	14	36	35	25	31
Indonesia					48	49	51	48=	53	70	53	70	63	68	64=	51	59=	64	37=	54	42=		52=	36
Iran				26=	20	14	14	8=	14	6	8	9	3	1	8	10	18	11	17=	9	4	8	12=	5
Ireland					43	45	40=	44	41=	50	61	61	68	58=	62	69	63=	70=	74	66	51	67	63=	70
Israel		18	16		13=	26	26	23	20	18=	13	15	22=	24	25=	11=	17	18	21	15	30	25	50=	27
Italy	20		32	35	35	18	13	36	28	23	26=	25=	48=	38	23	50	46=	33	49=	49=	24	12	21	24
Japan							20	12	8=	20	9	11=	12	14	13	15	13	16=	9	8	8	7	6=	11
Kazakhstan										25	57	64	46=	35	35	24	6	16=	12=	21=	26	30=	28=	25
Kuwait		30	31	37	45=	47	47			68=	73	75	76=	76	78=	78	81	83	80	84	85=	86=		97
Kyrgyzstan										60	65=	67=	75	69	76	76=	79	75=	49=	52=	58=	77	67	79=
Latvia										31	39=	33	22=	37	22	46=	38=	40=	49=	52=	47=	52=	60	63=
Liechtenstein																					84	89	88=	90=
Lithuania										49	50	32	51	55	51	62=	56	42	52=	51	53	33=	31	35
Luxembourg			29	38=	30	35	44	48=		65				65	71	53=	80	79	69	71	85=	82=	74=	61=
Macau							52	54	46=	61=	62	48=	56	64	60=	76=	63=	56=	58	42=	63=	59=	48=	63=
Macedonia										48	31	48=	46=	40	36=	43	43	43	47	48	54	62=	55	59=
Malaysia											72	72=	69=	62	63	64=	59=	69	67=	73	75=	70=	74=	55=
Mexico				40	37	31	37	35	50	61=	58=	53=	32=	44=	52=	32=	46=	46	41	37	31	24	37=	37
Moldova										59	36=	41	57=	50	56	26	40	48=	30=	17	21=	9	20	48=
Mongolia	17	22		30			46	47	36	61=	42	44=	30=	30=	25=	40=	31=	35=	25	19		44=	34=	29
Montenegro																							86	84=
Morocco			25	23	31	38	36	31=	40	40	24	65	60=	52=	57	55	52	63	55=	41	72=	65	81	63=
Mozambique																				82=	90	90
Netherlands	5	14	7	14	21	29	29	37=	30	35	45	59	37=	44=	31=	46=	54	54	64	61	47=	62=	56	33=
New Zealand					34	33=	31	29=	43	45=	46	37=	48=	49	52=	62=	44	35=	55=	58	38	58	50=	71=
Nicaragua				41
Nigeria																						84=	85
North Korea							19		16														8	7
Norway				28	42	36=	18	31=	29	44	52	37=	44	61	39=	57	50	44	42	59=	63=	66	43=	58
Pakistan																					80	76	78=
Panama				42																		75
Paraguay													76=	72=			82	80	82	82=	79	68	78=	84=
Peru				34	32	42							53=	46	78=	64=	41	51	60=	63=	29	40	32	17=
Philippines					44	43	48=	42	44	52=	65=	74	73	70=	73	70=	75	74	79	79	68		84	86
Poland	11	13	15	31	33	12	21	15	24=	28=	16	13	20=	21	19	32=	19=	21=	22	16	27=	11	18	13
Portugal						44	50	46	46=	51	67	63	71=	72=	70	72=	78	78	73	77	69	47	62	67
Puerto Rico													76=			81=		75=	70=	69	82	84=	90	93
Romania	15	11	5	1	2=	2	4	3	3	11	2	1	7=	11	4	11=	15	8	7	10	6	6	11	17=
Russia									6	4	3	4	4=	6	1=	2	2=	2	5	3	3	2	1	2
Saudi Arabia																				85	85=	88	91	94
Serbia																						38	23	20=
Serbia and Montenegro											17=	24	20=	10	14	23	31=	29	23	21=	39
Singapore					18	15	27	27=	26=	30	26=	25=	41=	22=	36=	37	29	30	36	18	14	27	36	32
Slovakia										12	21=	17	36	33=	21	18=	48	25	35	31	20	18	37=	46=
Slovenia										45=	60	44=	50	51	58	34=	67	58	75	49=	55=	36=	39	50=
South Africa									54	57=	41	43	39	28	27=	27	36	32	45	33	62	62=	68	44
South Korea					22	28	32	17	18	15=	7	8	11	12	7	4	4=	6	6	12	5	3	3=	4
Spain			23	22	41	39	35	40=	37=	45=	51	48=	64	58=	46	68	58	60=	46	55=	58=	44=	66	43
Sri Lanka											71	53=		74	81	72=	71	77	81	74	67	55	83	78
Sweden	13	19	21	17	13=	32	28	21	24=	39	35	40	19	47	41=	31	68=	48=	48	46	61	43	41	53
Switzerland								50=	51	42=	39=	62	57=	57	24	40=	57	60=	67=	55=	42=	30=	58=	50=
Taiwan									17	5	12	20	14	5	9	8	9	7	16	6	7	10	9=	9
Tajikistan																					85=	72	71	61=
Thailand						41	33=	25	37=	41	34	47	52	42	47=	29=	22=	21=	19=	35	23	15=	14	6
Trinidad and Tobago								45	52=	57=	63	60	65	58=	68	59	59=	72=	62=	76	78	73=	70	79=
Tunisia		29	27		25	30	45	39	33						74		59=	72=		75	81			88
Turkey				21	27=	16	33=	24	34	24	25	19	25	17=	16	18=	11	14=	8	32	21=	19=	17	8
Turkish Republic of Northern Cyprus										67
Turkmenistan										72=		72=			77		66	59	60=	62	72=	61	63=	46=
Ukraine										21	23	18	6	8	12	13	8	20	14	11	9=	22	6=	15
Union of Soviet Socialist Republics	2	2	4	3	1	3	2	1
United Arab Emirates																								95=
United Kingdom	3=	10	11	10	11	20=	10	18=	5	14	10	5	16	17=	20	22	31=	27	10=	20	13	19=	28=	23
United States of America	1	3=	2	5	6	5	3	5	2	7	11	2	4=	3=	10	3	2=	3	3	2	2	5	5	3
Uruguay				38=									69=	70=	72	70=	77	84	65	67	65=	82=		87
Uzbekistan													67		59	38	27	48=	52=	45		57	34=	33=
Venezuela		27=				50							81	75	80	79=	49	52=	78	80	75=	73=	88=	90=
Vietnam		5	6	11	5	9	23	8=	10=	9	4	7	10	9	3	5=	10	5	4	4	15	13	3=	12
West Germany	7	1	1	2	4	8	12
Yugoslavia	10	12	18	18	19	11	25	16	12

Country Positions, Descending Order

The following table shows the positions of each country each year in the unofficial mark ordering, sorted for each year in that year’s mark ordering.

Position	1977	1982	1983	1987	1988	1989	1990	1991	1992	1993	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008
1	United States of America	West Germany	West Germany	Romania	Union of Soviet Socialist Republics	China	China	Union of Soviet Socialist Republics	China	China	China	Romania	China	Iran	China / Russia	China	China	China	Bulgaria	China	China	China	Russia	China
2	Union of Soviet Socialist Republics	Union of Soviet Socialist Republics	United States of America	West Germany	China / Romania	Romania	Union of Soviet Socialist Republics	China	United States of America	Germany	Romania	United States of America	Hungary	Bulgaria	China / Russia	Russia	Russia / United States of America	Russia	China	United States of America	United States of America	Russia	China	Russia
3	Hungary / United Kingdom	East Germany / United States of America	Hungary	Union of Soviet Socialist Republics	China / Romania	Union of Soviet Socialist Republics	United States of America	Romania	Romania	Bulgaria	Russia	Hungary	Iran	Hungary / United States of America	Vietnam	United States of America	Russia / United States of America	United States of America	United States of America	Russia	Russia	South Korea	South Korea / Vietnam	United States of America
4	Hungary / United Kingdom	East Germany / United States of America	Union of Soviet Socialist Republics	East Germany	West Germany	East Germany	Romania	Germany	Commonwealth of Independent States	Russia	Vietnam	Russia	Russia / United States of America	Hungary / United States of America	Romania	South Korea	Bulgaria / South Korea	Bulgaria	Vietnam	Vietnam	Iran	Germany	South Korea / Vietnam	South Korea
5	Netherlands	Vietnam	Romania	United States of America	Vietnam	United States of America	France	United States of America	United Kingdom	Taiwan	Hungary	United Kingdom	Russia / United States of America	Taiwan	Bulgaria	Bulgaria / Vietnam	Bulgaria / South Korea	Vietnam	Russia	Bulgaria	South Korea	United States of America	United States of America	Iran
6	Bulgaria	Hungary	Vietnam	Hungary	United States of America	Czechoslovakia	Hungary	Hungary	Russia	Iran	Bulgaria	China	Ukraine	Russia	Belarus	Bulgaria / Vietnam	Kazakhstan	South Korea	South Korea	Taiwan	Romania	Romania	Japan / Ukraine	Thailand
7	West Germany	Czechoslovakia	Netherlands	Bulgaria	East Germany	Bulgaria	East Germany	Bulgaria	Germany	United States of America	South Korea	Vietnam	Bulgaria / Romania	India	South Korea	Belarus	India	Taiwan	Romania	Hungary	Taiwan	Japan	Japan / Ukraine	North Korea
8	East Germany	Finland	Czechoslovakia	China	Bulgaria	West Germany	Czechoslovakia	Iran / Vietnam	Hungary / Japan	Hungary	Iran	South Korea	Bulgaria / Romania	Ukraine	Iran	Taiwan	Ukraine	Romania	Turkey	Japan	Japan	Iran	North Korea	Turkey
9	Czechoslovakia	Bulgaria	Bulgaria	Czechoslovakia	France	Vietnam	Bulgaria	Iran / Vietnam	Hungary / Japan	Vietnam	Japan	Iran	Australia	Vietnam	Taiwan	Hungary	Taiwan	India	Japan	Iran	Hungary / Ukraine	Moldova	Bulgaria / Taiwan	Taiwan
10	Yugoslavia	United Kingdom	France	United Kingdom	Canada	Hungary	United Kingdom	India	France / Vietnam	Czech Republic	United Kingdom	Germany	Vietnam	Yugoslavia (Serbia and Montenegro)	United States of America	Iran	Vietnam	Germany	Hungary / United Kingdom	Romania	Hungary / Ukraine	Taiwan	Bulgaria / Taiwan	Hungary
11	Poland	Romania	United Kingdom	Vietnam	United Kingdom	Yugoslavia	Canada	Czechoslovakia	France / Vietnam	Romania	United States of America	Bulgaria / Japan	South Korea	Romania	Hungary	Israel / Romania	Turkey	Iran	Hungary / United Kingdom	Ukraine	Bulgaria	Poland	Romania	Japan
12	Austria	Yugoslavia	East Germany	France	Czechoslovakia	Poland	West Germany	Japan	Yugoslavia	Slovakia	Taiwan	Bulgaria / Japan	Japan	South Korea	Ukraine	Israel / Romania	Belarus	Canada / Hungary	Canada / Kazakhstan	South Korea	Germany	Italy	Hong Kong / Iran	Vietnam
13	Sweden	Poland	Finland	Austria	Israel / Sweden	France	Italy	France	Czechoslovakia	Australia	Israel	Poland	Germany	Australia	Japan	Ukraine	Japan	Canada / Hungary	Canada / Kazakhstan	Belarus	United Kingdom	Vietnam	Hong Kong / Iran	Poland
14	France	Netherlands	Canada	Netherlands	Israel / Sweden	Iran	Iran	Canada	Iran	United Kingdom	India	India	Taiwan	Japan	Yugoslavia (Serbia and Montenegro)	India	Germany	Belarus / Turkey	Ukraine	India	Singapore	Hong Kong	Thailand	Bulgaria
15	Romania	France	Poland	Australia	Austria	Singapore	Australia / Austria	Poland	Bulgaria	India / South Korea	Germany	Israel	India	Czech Republic	Australia	Japan	Romania	Belarus / Turkey	India	Israel	Vietnam	Canada / Thailand	Germany	Ukraine
16	Finland	Austria	Israel	Canada	Hungary	Turkey	Australia / Austria	Yugoslavia	North Korea	India / South Korea	Poland	Canada	United Kingdom	Germany	Turkey	Australia	Brazil	Japan / Kazakhstan	Taiwan	Poland	Czech Republic	Canada / Thailand	Hungary	Brazil
17	Mongolia	Canada	Greece	Sweden	Australia	Hong Kong	India	South Korea	Taiwan	France	Czech Republic / Yugoslavia (Serbia and Montenegro)	Slovakia	Belarus	Turkey / United Kingdom	Germany	Canada	Israel	Japan / Kazakhstan	Germany / Iran	Moldova	Hong Kong	Hungary	Turkey	Peru / Romania
18	Cuba	Israel	Yugoslavia	Yugoslavia	Singapore	Italy	Norway	Austria / United Kingdom	South Korea	Canada / Israel	Czech Republic / Yugoslavia (Serbia and Montenegro)	Ukraine	Czech Republic	Turkey / United Kingdom	India	Slovakia / Turkey	Iran	Israel	Germany / Iran	Singapore	Belarus	Slovakia	Poland	Peru / Romania
19	Belgium	Sweden	Australia	Brazil	Yugoslavia	Canada	North Korea	Austria / United Kingdom	Australia	Canada / Israel	Canada	Turkey	Sweden	Belarus	Poland	Slovakia / Turkey	Hong Kong / Poland	France	Belarus / Thailand	Mongolia	Canada	Turkey / United Kingdom	Belarus	Australia
20	Italy	Australia / Brazil	Brazil	Greece	Iran	Greece / United Kingdom	Japan	Australia	Israel	Japan	Hong Kong	Taiwan	Poland / Yugoslavia (Serbia and Montenegro)	Canada	United Kingdom	Armenia / Germany	Hong Kong / Poland	Ukraine	Belarus / Thailand	United Kingdom	Slovakia	Turkey / United Kingdom	Moldova	Germany / Serbia
21	Algeria	Australia / Brazil	Sweden	Turkey	Netherlands	Greece / United Kingdom	Poland	Sweden	India	Ukraine	Australia / Slovakia	Belarus	Poland / Yugoslavia (Serbia and Montenegro)	Poland	Slovakia	Armenia / Germany	Hungary	Brazil / Poland / Thailand	Israel	Brazil / Canada / Kazakhstan / Serbia and Montenegro	Moldova / Turkey	Bulgaria	Italy	Germany / Serbia
22		Mongolia	Austria	Spain	South Korea	Australia / Colombia	Hong Kong	Belgium	Canada	Austria	Australia / Slovakia	Greece	Israel / Latvia	Croatia / Singapore	Latvia	United Kingdom	Argentina / Thailand		Poland		Moldova / Turkey	Ukraine	Australia	Canada
23		Greece	Spain	Morocco	Belgium	Australia / Colombia	Vietnam	Israel	Belgium	Italy	Ukraine	Australia	Israel / Latvia	Croatia / Singapore	Italy	Yugoslavia (Serbia and Montenegro)	Argentina / Thailand		Serbia and Montenegro		Thailand	Belarus	Serbia	United Kingdom
24		Belgium	Cuba	Cuba	Hong Kong	Austria	Brazil	Turkey	Poland / Sweden	Turkey	Morocco	Yugoslavia (Serbia and Montenegro)	Croatia	Israel	Switzerland	Kazakhstan	Canada	Hong Kong	France		Italy	Mexico	Brazil	Italy
25		Cuba	Morocco	Belgium	Tunisia	India	Yugoslavia	Thailand	Poland / Sweden	Kazakhstan	Turkey	Italy / Singapore	Turkey	Hong Kong	Israel / Mongolia	Argentina	Australia	Slovakia	Mongolia	Germany	Australia	Israel	India	Kazakhstan
26		Colombia	Belgium	Finland / Iran	Colombia	Israel	Israel	Colombia	Hong Kong / Singapore	Colombia / Georgia	Belarus / Italy / Singapore	Italy / Singapore	Brazil	Armenia / France	Israel / Mongolia	Moldova	Cuba	Australia	Australia / Brazil	Greece	Kazakhstan	Australia	Georgia	Belarus
27		Algeria / Venezuela	Tunisia	Finland / Iran	Finland / Greece / Turkey	Belgium	Singapore	Argentina / Singapore	Hong Kong / Singapore	Colombia / Georgia		Hong Kong	Colombia	Armenia / France	Cuba / South Africa	South Africa	Uzbekistan	United Kingdom	Australia / Brazil	Australia	Colombia / Poland	Singapore	Canada	Israel
28		Algeria / Venezuela	Colombia	Norway		South Korea	Sweden	Argentina / Singapore	Italy	Armenia / Poland		Czech Republic	Georgia	South Africa	Cuba / South Africa	Hong Kong	France	Czech Republic	Argentina / Hong Kong	Georgia	Colombia / Poland	France	Kazakhstan / United Kingdom	Hong Kong
29		Tunisia	Luxembourg	Colombia		Netherlands	Netherlands	Hong Kong / New Zealand	Norway	Armenia / Poland	Argentina	Argentina	Canada	Argentina	Austria / Brazil	Bosnia-Herzegovina / Thailand	Singapore	Yugoslavia (Serbia and Montenegro)	Argentina / Hong Kong	Colombia	Peru	Brazil	Kazakhstan / United Kingdom	Mongolia
30		Kuwait	Algeria	Mongolia	Luxembourg	Tunisia	Colombia	Hong Kong / New Zealand	Netherlands	Singapore	France	Georgia	Hong Kong / Mongolia	Brazil / Mongolia	Austria / Brazil	Bosnia-Herzegovina / Thailand	Greece	Singapore	Greece / Moldova	Hong Kong	Israel	Argentina / Kazakhstan / Switzerland	Colombia	France
31			Kuwait	Poland	Morocco	Mexico	New Zealand	Morocco / Norway	Austria	Latvia	Macedonia	Belgium	Hong Kong / Mongolia	Brazil / Mongolia	Canada / Netherlands	Sweden	Mongolia / United Kingdom / Yugoslavia (Serbia and Montenegro)	Argentina	Greece / Moldova	Slovakia	Mexico		Lithuania	India
32			Italy	Iceland	Peru	Sweden	South Korea	Morocco / Norway	Argentina	Denmark	Armenia / Croatia	Lithuania	France / Mexico	Greece	Canada / Netherlands	Mexico / Poland		South Africa	Georgia	Turkey	France		Peru	Singapore
33				Cyprus	Poland	Cuba / New Zealand	Thailand / Turkey	Greece	Tunisia	Hong Kong	Armenia / Croatia	Latvia	France / Mexico	Bosnia-Herzegovina / Slovakia	France / Hong Kong	Mexico / Poland		Italy	Croatia	South Africa	Armenia / Brazil / Croatia	Georgia / Lithuania	Greece	Netherlands / Uzbekistan
34				Peru	New Zealand	Cuba / New Zealand	Thailand / Turkey	Cuba	Turkey	Brazil	Thailand	Armenia / Croatia	Armenia / Finland	Bosnia-Herzegovina / Slovakia	France / Hong Kong	Croatia / Slovenia	Cyprus	Georgia	Czech Republic	Czech Republic		Georgia / Lithuania	Mongolia / Uzbekistan	Netherlands / Uzbekistan
35				Italy	Italy	Luxembourg	Spain	Mexico	Colombia	Netherlands	Sweden	Armenia / Croatia	Armenia / Finland	Kazakhstan	Kazakhstan	Croatia / Slovenia	Croatia	Mongolia / New Zealand	Slovakia	Thailand		India	Mongolia / Uzbekistan	Lithuania
36				Algeria	Algeria	Brazil / Norway	Morocco	Italy	Mongolia	Cuba	Finland / Moldova	France	Slovakia	Georgia	Macedonia / Singapore	Georgia	South Africa	Mongolia / New Zealand	Singapore	Armenia	India	Armenia / Slovenia	Singapore	Indonesia
37				Kuwait	Mexico	Brazil / Norway	Mexico	Brazil / Netherlands	Spain / Thailand	Belgium	Finland / Moldova	New Zealand / Norway	Argentina / Netherlands	Latvia	Macedonia / Singapore	Singapore	Estonia	Colombia	Belgium / Indonesia	Mexico	Georgia	Armenia / Slovenia	Mexico / Slovakia	Mexico
38				Luxembourg / Uruguay	Brazil	Morocco	Argentina / Cuba	Brazil / Netherlands	Spain / Thailand	Belarus	Colombia	New Zealand / Norway	Argentina / Netherlands	Italy	Georgia	Uzbekistan	Georgia / Latvia	Finland	Belgium / Indonesia	France	New Zealand	Serbia	Mexico / Slovakia	Croatia
39				Luxembourg / Uruguay	Iceland	Spain	Argentina / Cuba	Tunisia	Brazil	Sweden	Latvia / Switzerland	Finland	South Africa	Belgium	Armenia / Norway	Austria	Georgia / Latvia	Cuba	Colombia	Argentina	Serbia and Montenegro	Finland	Slovenia	Argentina / Czech Republic / Greece
40				Mexico	Cuba	Finland	Bahrain / Ireland	Finland / Spain	Morocco	Morocco	Latvia / Switzerland	Sweden	Cuba	Macedonia	Armenia / Norway	Mongolia / Switzerland	Moldova	Estonia / Latvia	Azerbaijan	Croatia	Austria / Belgium	Peru	Czech Republic
41				Nicaragua	Spain	Thailand	Bahrain / Ireland	Finland / Spain	Denmark / Ireland	Thailand	South Africa	Moldova	Belgium / Singapore	Colombia	Croatia / Sweden	Mongolia / Switzerland	Peru	Estonia / Latvia	Mexico	Morocco	Austria / Belgium	Bosnia-Herzegovina	Sweden
42				Panama	Norway	Peru	Greece	Philippines	Denmark / Ireland	Argentina / Switzerland	Mongolia	Austria	Belgium / Singapore	Thailand	Croatia / Sweden	Czech Republic	Colombia	Lithuania	Norway	Belgium / Macau	Indonesia / Switzerland	Austria	Austria	Georgia
43					Ireland	Philippines	Finland	Denmark	New Zealand	Argentina / Switzerland	Austria	South Africa	Austria	Estonia	Bosnia-Herzegovina / Finland	Macedonia	Macedonia	Macedonia	Armenia / Bosnia-Herzegovina	Belgium / Macau	Indonesia / Switzerland	Sweden	France / Norway	Spain
44					Philippines	Portugal	Luxembourg	Ireland	Philippines	Norway	Brazil	Mongolia / Slovenia	Norway	Mexico / Netherlands	Bosnia-Herzegovina / Finland	Colombia / Cuba	New Zealand	Norway	Armenia / Bosnia-Herzegovina	Estonia	Denmark	Estonia / Mongolia / Spain	France / Norway	South Africa
45					Argentina / Kuwait	Ireland	Tunisia	Trinidad and Tobago	Greece	New Zealand / Slovenia / Spain	Netherlands	Mongolia / Slovenia	Greece	Mexico / Netherlands	Argentina	Colombia / Cuba	Czech Republic	Croatia	South Africa	Uzbekistan	Estonia		Belgium	Colombia
46					Argentina / Kuwait	Iceland	Mongolia	Portugal	Macau / Portugal		New Zealand	Colombia	Kazakhstan / Macedonia	Peru	Spain	Latvia / Netherlands	Italy / Mexico	Mexico	Spain	Sweden	Argentina		Croatia	Slovakia / Turkmenistan
47					Cyprus	Kuwait	Kuwait	Mongolia	Macau / Portugal		Belgium	Thailand	Kazakhstan / Macedonia	Sweden	Greece / Thailand	Latvia / Netherlands	Italy / Mexico	Greece	Macedonia	Azerbaijan	Latvia / Netherlands	Portugal	Argentina	Slovakia / Turkmenistan
48					Indonesia	Cyprus	Cyprus / Philippines	Indonesia / Luxembourg	Cyprus	Macedonia	Georgia	Denmark / Macau / Macedonia / Spain	Italy / New Zealand	Austria	Greece / Thailand	Brazil / France	Slovakia	Moldova / Sweden / Uzbekistan	Sweden	Macedonia	Latvia / Netherlands	Azerbaijan / Czech Republic	Armenia / Macau	Azerbaijan / Moldova
49					Ecuador	Indonesia	Cyprus / Philippines	Indonesia / Luxembourg	Finland	Lithuania	Denmark		Italy / New Zealand	New Zealand	Colombia / Czech Republic	Brazil / France	Venezuela		Italy / Kyrgyzstan / Latvia	Italy / Slovenia	Azerbaijan	Azerbaijan / Czech Republic	Armenia / Macau	Azerbaijan / Moldova
50						Venezuela	Portugal	Iceland / Switzerland	Mexico	Ireland	Lithuania		Slovenia	Moldova	Colombia / Czech Republic	Italy	Norway			Italy / Slovenia	Greece	Albania / Colombia	Israel / New Zealand	Bosnia-Herzegovina / Slovenia / Switzerland
51							Indonesia	Iceland / Switzerland	Switzerland	Portugal	Spain		Lithuania	Slovenia	Lithuania	Indonesia	Bosnia-Herzegovina	Peru		Lithuania	Ireland	Albania / Colombia	Israel / New Zealand
52							Macau	Cyprus	Trinidad and Tobago	Azerbaijan / Finland / Philippines	Norway	Brazil	Thailand	Iceland / Morocco	Mexico / New Zealand	Finland	Morocco	Belgium / Venezuela	Lithuania / Uzbekistan	Kyrgyzstan / Latvia	Cuba	Belgium / Latvia	Azerbaijan / Bosnia-Herzegovina / Indonesia
53							Iceland	Algeria	Indonesia		Indonesia	Mexico / Sri Lanka	Estonia / Peru	Iceland / Morocco	Mexico / New Zealand	Belgium / Luxembourg	Armenia	Belgium / Venezuela	Lithuania / Uzbekistan	Kyrgyzstan / Latvia	Lithuania	Belgium / Latvia		Sweden
54							Algeria	Macau	South Africa		Greece	Mexico / Sri Lanka	Estonia / Peru	Azerbaijan	Belgium / Denmark	Belgium / Luxembourg	Netherlands	Netherlands	Estonia	Indonesia	Macedonia	Croatia		Denmark
55								Bahrain	Cuba	Croatia	Cuba	Estonia	Azerbaijan	Lithuania	Belgium / Denmark	Morocco	Austria	Denmark	Finland / Morocco / New Zealand	Albania / Spain / Switzerland	Bosnia-Herzegovina / Finland / Slovenia	Sri Lanka	Macedonia	Costa Rica / Malaysia
56									Iceland	Estonia	Estonia	Iceland	Macau	Cyprus	Moldova	Greece	Lithuania	Austria / Macau				Greece	Netherlands	Costa Rica / Malaysia
57										South Africa / Trinidad and Tobago	Kazakhstan	Bosnia-Herzegovina	Denmark / Moldova / Switzerland	Switzerland	Morocco	Norway	Switzerland	Austria / Macau				Uzbekistan	Estonia	Austria
58										South Africa / Trinidad and Tobago	Cyprus / Mexico	Azerbaijan		Ireland / Spain / Trinidad and Tobago	Slovenia	Estonia	Spain	Slovenia	Macau	New Zealand	Kyrgyzstan / Spain	New Zealand	Albania / Switzerland	Norway
59										Moldova	Cyprus / Mexico	Netherlands			Uzbekistan	Trinidad and Tobago	Indonesia / Malaysia / Trinidad and Tobago / Tunisia	Turkmenistan	Austria	Austria / Norway	Kyrgyzstan / Spain	Iceland / Macau	Albania / Switzerland	Belgium / Macedonia
60										Kyrgyzstan	Slovenia	Trinidad and Tobago	Iceland / Morocco		Iceland / Macau	Iceland		Spain / Switzerland	Peru / Turkmenistan	Austria / Norway	Albania	Iceland / Macau	Latvia	Belgium / Macedonia
61										Macau / Mexico / Mongolia	Ireland	Ireland	Iceland / Morocco	Norway	Iceland / Macau	Denmark		Spain / Switzerland	Peru / Turkmenistan	Netherlands	Sweden	Turkmenistan	Finland	Luxembourg / Tajikistan
62											Macau	Switzerland	Bosnia-Herzegovina	Malaysia	Ireland	Lithuania / New Zealand		Bosnia-Herzegovina	Iceland / Trinidad and Tobago	Turkmenistan	South Africa	Macedonia / Netherlands / South Africa	Portugal	Luxembourg / Tajikistan
63											Trinidad and Tobago	Portugal	Indonesia	Finland	Malaysia	Lithuania / New Zealand	Finland / Ireland / Macau	Morocco	Iceland / Trinidad and Tobago	Cyprus / Finland / Peru	Macau / Norway		Ireland / Turkmenistan	Latvia / Macau / Morocco
64										Iceland	Azerbaijan	Kazakhstan	Spain	Macau	Cyprus / Indonesia	Azerbaijan / Cyprus / Malaysia / Peru		Indonesia	Netherlands		Macau / Norway		Ireland / Turkmenistan
65										Luxembourg	Kyrgyzstan / Philippines	Morocco	Trinidad and Tobago	Luxembourg	Cyprus / Indonesia			Azerbaijan	Uruguay		Costa Rica / Uruguay	Morocco	Denmark
66										Albania	Kyrgyzstan / Philippines	Cuba	Chile	Denmark	Albania / Azerbaijan		Turkmenistan	Iceland	Denmark	Ireland	Costa Rica / Uruguay	Norway	Spain	Armenia
67										Turkish Republic of Northern Cyprus	Portugal	Albania / Kyrgyzstan	Uzbekistan	Cuba	Albania / Azerbaijan		Slovenia	Armenia	Malaysia / Switzerland	Uruguay	Sri Lanka	Ireland	Kyrgyzstan	Portugal
68										Bahrain / Kuwait	Iceland	Albania / Kyrgyzstan	Ireland	Indonesia	Trinidad and Tobago	Spain	Belgium / Denmark / Sweden	Cyprus	Malaysia / Switzerland	Denmark	Philippines	Paraguay	South Africa	Albania
69										Bahrain / Kuwait	Bosnia-Herzegovina	Cyprus	Malaysia / Uruguay	Kyrgyzstan	Estonia	Ireland		Malaysia	Luxembourg	Puerto Rico	Portugal	Denmark	Cyprus	Chile
70										Indonesia	Chile	Indonesia	Malaysia / Uruguay	Philippines / Uruguay	Portugal	Philippines / Uruguay		Albania / Ireland	Albania / Cyprus / Puerto Rico	Bosnia-Herzegovina	El Salvador	Ecuador / Malaysia	Trinidad and Tobago	Ireland
71										Bosnia-Herzegovina	Sri Lanka	Chile	Albania / Portugal	Philippines / Uruguay	Luxembourg	Philippines / Uruguay	Sri Lanka	Albania / Ireland		Luxembourg	Iceland	Ecuador / Malaysia	Tajikistan	Cyprus / New Zealand
72										Algeria / Turkmenistan	Malaysia	Malaysia / Turkmenistan	Albania / Portugal	Paraguay / Portugal	Uruguay	Portugal / Sri Lanka	Albania	Trinidad and Tobago / Tunisia		Iceland	Morocco / Turkmenistan	Tajikistan	Costa Rica	Cyprus / New Zealand
73										Algeria / Turkmenistan	Kuwait	Malaysia / Turkmenistan	Philippines	Paraguay / Portugal	Philippines	Portugal / Sri Lanka	Azerbaijan	Trinidad and Tobago / Tunisia	Portugal	Malaysia	Morocco / Turkmenistan	Trinidad and Tobago / Venezuela	Iceland	Estonia
74												Philippines	Bolivia	Sri Lanka	Tunisia	Ecuador	Iceland	Philippines	Ireland	Sri Lanka	Ecuador	Trinidad and Tobago / Venezuela	Ecuador / El Salvador / Luxembourg / Malaysia	Finland
75												Kuwait	Kyrgyzstan	Venezuela	Guatemala	Albania	Philippines	Kyrgyzstan / Puerto Rico	Slovenia	Tunisia	Malaysia / Venezuela	Panama		Bangladesh
76													Kuwait / Paraguay / Puerto Rico	Kuwait	Kyrgyzstan	Kyrgyzstan / Macau	Guatemala	Kyrgyzstan / Puerto Rico	Cuba	Trinidad and Tobago	Malaysia / Venezuela	Pakistan		El Salvador / Iceland
77															Turkmenistan	Kyrgyzstan / Macau	Uruguay	Sri Lanka	Ecuador	Portugal	Cyprus	Kyrgyzstan		El Salvador / Iceland
78															Kuwait / Peru	Kuwait	Portugal	Portugal	Venezuela	Cuba	Trinidad and Tobago	Costa Rica / El Salvador	Pakistan / Paraguay	Sri Lanka
79													Guatemala		Kuwait / Peru	Guatemala / Venezuela	Kyrgyzstan	Luxembourg	Philippines	Philippines	Paraguay	Costa Rica / El Salvador	Pakistan / Paraguay	Kyrgyzstan / Trinidad and Tobago
80													Cyprus		Venezuela	Guatemala / Venezuela	Luxembourg	Paraguay	Kuwait	Venezuela	Pakistan	Bangladesh	Bangladesh	Kyrgyzstan / Trinidad and Tobago
81													Venezuela		Sri Lanka	Brunei / Puerto Rico	Kuwait	Guatemala	Sri Lanka	Ecuador	Tunisia	Cyprus	Morocco	Cuba
82													Algeria			Brunei / Puerto Rico	Paraguay	Ecuador	Paraguay	Mozambique / Paraguay	Puerto Rico	Luxembourg / Uruguay	Cambodia	Ecuador
83																	Ecuador	Kuwait		Mozambique / Paraguay	Guatemala	Luxembourg / Uruguay	Sri Lanka	Cambodia
84																		Uruguay		Kuwait	Liechtenstein	Nigeria / Puerto Rico	Philippines	Montenegro / Paraguay
85																				Saudi Arabia	Bangladesh / Kuwait / Luxembourg / Saudi Arabia / Tajikistan	Nigeria / Puerto Rico	Nigeria	Montenegro / Paraguay
86																						Bolivia / Kuwait	Montenegro	Philippines
87																						Bolivia / Kuwait	Cuba	Uruguay
88																						Saudi Arabia	Liechtenstein / Venezuela	Tunisia
89																						Liechtenstein	Liechtenstein / Venezuela	Honduras
90																					Mozambique	Mozambique	Puerto Rico	Guatemala / Liechtenstein / Venezuela
91																					Bolivia		Saudi Arabia
92																							Chile
93																							Bolivia	Puerto Rico
94																								Saudi Arabia
95																								Bolivia / United Arab Emirates
96																								Bolivia / United Arab Emirates
97																								Kuwait

Data Sources

Where available, data from each year’s IMO’s web site or from the old central IMO web site have been used. These web pages were not designed for further automatic processing of this type, so some infelicities might have arisen as a result of the processing, although where possible the data extraction was cross‐checked (for example, by checking that total scores given in the web pages agree with total scores computed from my data). In some cases, full details of non‐medallists were not available from the web pages; printed results were scanned as necessary in these cases. Older results will added through scanning printed results in their entirety.

Some years have more accents and diacritical marks included in their results lists than others (for example, 2000 had none at all on the original list, but some have been contributed for this site). I’d welcome corrections to these (or anything else) or details of diacritical marks that should go on the names but were missing in the original sources.

I have tried to use uniform versions of the names of competing countries (not all of which are independent states) rather than strictly following the precise name under which a country has competed at each IMO or the full legal name of each country. For example, Taiwan has competed under various other names such as Chinese Taipei; Macedonia has competed as the Former Yugoslav Republic of Macedonia; South Korea has sometimes competed simply as Korea.

Some countries have their own lists of past team members; the amount of information available on these lists varies.

I would like to thank the following who have supplied data that are used in this site or otherwise assisted with information or suggestions:

The annual IMO web sites, 1995–2008, the old central IMO web site, the official IMO web site, and their webmasters for providing data and corrections.
Christopher Bradley
Fremior Camba Aldanás
Javier Alejandro Chávez Domínguez
Dusan Djukic
Orlando Döhring
Theresia Eisenkölbl
François Glineur
Michel Goemans
Hans‐Dietrich Gronau
Bodo Heise
Clemens Heuberger
Miltos Kambourides
Payman Kassaei
Jerome Khohayting
Imre Leader
Gordon Lessells
Adam McBride
Mojca Miklavec
Bram Minnaert
Härmel Nestra
Aleksey Nogin
Martin Orr
Carlos José Pérez Jiménez
Jaakko Ruohio
Tom Verhoeff
Giorgos Zacharia

If I have missed out your contribution here, please let me know.

Raw Data

The raw data behind this site are available as a TAR file. I encourage use of this data both for creation of other analyses of the data and sites based on it, and as test data for systems developed for processing the scores of future IMOs. The individual files contained in this file are UTF‐8 encoded text, with a single LF (U+000A) used as line terminator. There is one directory for each year’s files; the files that contains are:

countries

A list of country codes and their corresponding country names; everything after the first space is the country name. Where there were students from countries not officially competing (as in 1992), the codes for those countries are immediately followed by *.

max-marks

A single line containing a space‐separated list of the maximum number of marks available for each question. The number of questions is deduced from this file. For all years currently available with scores on individual problems, this line reads ‘7 7 7 7 7 7’. If scores on individual problems are unavailable, this line just contains the maximum total number of marks.

medal-boundaries

Three lines giving the minimal score required for gold, silver and bronze medals, in the format:

gold 30
silver 20
bronze 11

place

One line naming the place where the IMO was held.

scores

A list of contestants and their scores. The data for each contestant is on a single line, and consists of the contestant code, a space, the name, a space, and their scores on each question, separated by spaces. The number of scores is determined by the max-marks file, so the name may be unambiguously located on each line. Non-numeric score values are mostly equivalent to 0 in calculations and statistics, but may have some further meaning, which is not precisely documented. A score of D indicates disqualification; a score of - indicates unspecified absence of a score on a question (possibly meaning no script was submitted on that question, and possibly meaning absence from the IMO where all scores of a contestant are -); but sometimes scores of 0 are used instead of any special codes. A score of M indicates special circumstances relating to a particular problem where the medal awarded was determined by special resolution of the Jury.

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Contact: Joseph Myers (jsm@polyomino.org.uk)
Last updated: 20 July 2008