List of International Mathematical Olympiads

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A circle, interlinked with a sideways figure of eight (lemniscate). The circle is half green and half yellow, the lemniscate is a third red, a third blue and a third black. The shapes are featured in front of a white background.
Logo of the International Mathematical Olympiad

The first of the International Mathematical Olympiads (IMOs) was held in Romania in 1959. The oldest of the International Science Olympiads, the IMO has since been held annually, except in 1980. That year, the competition initially planned to be held in Mongolia was cancelled due to the Soviet invasion of Afghanistan.[1] Because the competition was initially founded for Eastern European countries participating in the Warsaw Pact, under the influence of the Eastern Bloc,[2] the earlier IMOs were hosted only in Eastern European countries, gradually spreading to other nations.[3]

The first IMO was held in Romania in 1959. Seven countries entered – Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, Romania and the Soviet Union – with the hosts finishing as the top-ranked nation.[4] The number of participating countries has since risen: 14 countries took part in 1969, 50 in 1989, and 104 in 2009.[5]

North Korea is the only country whose entire team has been caught cheating, resulting in its disqualification at the 32nd IMO in 1991 and the 51st IMO in 2010.[6] (However, the 2010 case was controversial.[7][8]) There have been other disqualifications of contestants due to cheating, but such cases are not officially made public.[9] In January 2011, Google gave €1 million to the IMO organization to help cover the costs of the events from 2011 to 2015.[10]

List of Olympiads

Four men in black suits with bluish-white dress shirts and brightly coloured ties standing in front of a wall composed of wooden panels.
The four perfect scorers in the 2001 IMO. From left to right: Gabriel Carroll, Reid Barton, Zhiqiang Zhang, and Liang Xiao.
Ten people facing forward, in two lines of five. In the front row are five boys in their late teens. Behind them are four adults, and one person who appears to be in his late teens.
The Bangladesh team at the 2009 IMO
Six boys, standing on a line, all wearing white tops with red logos on their chest. They are holding a red, blue and white striped flag, which features a prominent crown and coat of arms.
Serbia's team for the 2010 IMO
File:IMO 2015 closing ceremony.jpg
The closing ceremony of the 2015 IMO
#[5] Venue Year Date[5] Top-ranked country[11] References
1  Template:Flagicon Brașov and Bucharest 1959 June 23 – July 31 File:Flag of Romania (1952-1965).svg Romania [12]
2  Template:Flagicon Sinaia 1960 July 18 – July 25 File:Flag of the Czech Republic.svg Czechoslovakia [12]
3  Template:Flagicon Veszprém 1961 July 6 – July 16 File:Flag of Hungary.svg Hungary [12]
4  Template:Flagicon Script error: No such module "sort". 1962 July 7 – July 15 File:Flag of Hungary.svg Hungary [12]
5  Template:Flagicon Warsaw and Wrocław 1963 July 5 – July 13 File:Flag of the Soviet Union.svg Soviet Union [12]
6  Template:Flagicon Moscow 1964 June 30 – July 10 File:Flag of the Soviet Union.svg Soviet Union [12]
7  Template:Flagicon East Berlin 1965 June 13 – July 13 File:Flag of the Soviet Union.svg Soviet Union [12]
8  Template:Flagicon Sofia 1966 July 3 – July 13 File:Flag of the Soviet Union.svg Soviet Union [12]
9  Template:Flagicon Cetinje 1967 July 7 – July 13 File:Flag of the Soviet Union.svg Soviet Union [12]
10  Template:Flagicon Moscow 1968 July 5 – July 18 File:Flag of East Germany.svg East Germany [12]
11  Template:Flagicon Bucharest 1969 July 5 – July 20 File:Flag of Hungary.svg Hungary [12]
12  Template:Flagicon Keszthely 1970 July 8 – July 22 File:Flag of Hungary.svg Hungary [12]
13  Template:Flagicon Žilina 1971 July 10 – July 21 File:Flag of Hungary.svg Hungary [12]
14  Template:Flagicon Toruń 1972 July 5 – July 17 File:Flag of the Soviet Union.svg Soviet Union [12]
15  Template:Flagicon Moscow 1973 July 5 – July 16 File:Flag of the Soviet Union.svg Soviet Union [12]
16  Template:Flagicon Erfurt and East Berlin 1974 July 4 – July 17 File:Flag of the Soviet Union.svg Soviet Union [12]
17  Template:Flagicon Burgas and Sofia 1975 July 3 – July 16 File:Flag of Hungary.svg Hungary [12]
18  Template:Flagicon Lienz 1976 July 2 – July 21 File:Flag of the Soviet Union.svg Soviet Union [12]
19  Template:Flagicon Belgrade 1977 July 1 – July 13 File:Flag of the United States.svg United States [12]
20  Template:Flagicon Bucharest 1978 July 3 – July 10 File:Flag of Romania (1965-1989).svg Romania [12]
21  Template:Flagicon London 1979 June 30 – July 9 File:Flag of the Soviet Union.svg Soviet Union [12]
-Script error: No such module "sort". Script error: No such module "sort".[1]
22  Template:Flagicon Washington, D.C. 1981 July 8 – July 20 File:Flag of the United States.svg United States [12]
23  Template:Flagicon Budapest 1982 July 5 – July 14 File:Flag of Germany.svg West Germany [12]
24  Template:Flagicon Paris 1983 July 3 – July 12 File:Flag of Germany.svg West Germany [12]
25  Template:Flagicon Prague 1984 June 29 – July 10 File:Flag of the Soviet Union.svg Soviet Union [12]
26  Template:Flagicon Joutsa 1985 June 29 – July 11 File:Flag of Romania (1965-1989).svg Romania [12]
27  Template:Flagicon Warsaw 1986 July 4 – July 15 File:Flag of the Soviet Union.svg Soviet Union
File:Flag of the United States.svg United States 		[12]
28  Template:Flagicon Havana 1987 July 5 – July 16 File:Flag of Romania (1965-1989).svg Romania [12]
29  Template:Flagicon Sydney and Canberra 1988 July 9 – July 21 File:Flag of the Soviet Union.svg Soviet Union [12]
30  Template:Flagicon Braunschweig 1989 July 13 – July 24 File:Flag of the People's Republic of China.svg China [12]
31  Template:Flagicon Beijing 1990 July 8 – July 19 File:Flag of the People's Republic of China.svg China [12]
32  Template:Flagicon Sigtuna 1991 July 12 – July 23 File:Flag of the Soviet Union.svg Soviet Union [12][n 1]
33  Template:Flagicon Moscow 1992 July 10 – July 21 File:Flag of the People's Republic of China.svg China [12]
34  Template:Flagicon Istanbul 1993 July 13 – July 24 File:Flag of the People's Republic of China.svg China [12]
35  Template:Flagicon Hong Kong[n 2] 1994 July 8 – July 20 File:Flag of the United States.svg United States [12]
36  Template:Flagicon Toronto 1995 July 13 – July 25 File:Flag of the People's Republic of China.svg China [13]
37  Template:Flagicon Mumbai 1996 July 5 – July 17 File:Flag of Romania.svg Romania [14]
38  Template:Flagicon Mar del Plata 1997 July 18 – July 31 File:Flag of the People's Republic of China.svg China [15]
39  Template:Flagicon Taipei 1998 July 10 – July 21 File:Flag of Iran.svg Iran [16]
40  Template:Flagicon Bucharest 1999 July 10 – July 22 File:Flag of the People's Republic of China.svg China
File:Flag of Russia.svg Russia 		[17]
41  Template:Flagicon Daejeon 2000 July 13 – July 25 File:Flag of the People's Republic of China.svg China [18]
42  Template:Flagicon Washington, D.C. 2001 July 1 – July 14 File:Flag of the People's Republic of China.svg China [19]
43  Template:Flagicon Glasgow 2002 July 19 – July 30 File:Flag of the People's Republic of China.svg China [20]
44  Template:Flagicon Tokyo 2003 July 7 – July 19 File:Flag of Bulgaria.svg Bulgaria [21]
45  Template:Flagicon Athens 2004 July 6 – July 18 File:Flag of the People's Republic of China.svg China [22]
46  Template:Flagicon Mérida 2005 July 8 – July 19 File:Flag of the People's Republic of China.svg China [23]
47  Template:Flagicon Ljubljana 2006 July 6 – July 18 File:Flag of the People's Republic of China.svg China [24]
48  Template:Flagicon Hanoi 2007 July 19 – July 31 File:Flag of Russia.svg Russia [25]
49  Template:Flagicon Madrid 2008 July 10 – July 22 File:Flag of the People's Republic of China.svg China [26]
50  Template:Flagicon Bremen 2009 July 10 – July 22 File:Flag of the People's Republic of China.svg China [27]
51  Template:Flagicon Astana 2010 July 2 – July 14 File:Flag of the People's Republic of China.svg China [28]
52  Template:Flagicon Amsterdam 2011 July 13 – July 24 File:Flag of the People's Republic of China.svg China [29]
53  Template:Flagicon Mar del Plata 2012 July 4 – July 16 File:Flag of South Korea.svg South Korea [30]
54  Template:Flagicon Santa Marta 2013 July 18 – July 28 File:Flag of the People's Republic of China.svg China [31]
55  Template:Flagicon Cape Town 2014 July 3 – July 13 File:Flag of the People's Republic of China.svg China [32]
56  Template:Flagicon Chiang Mai 2015 July 4 – July 16 File:Flag of the United States.svg United States [33]
57  Template:Flagicon Hong Kong 2016 July 6 – July 16 File:Flag of the United States.svg United States [34]
58  Template:Flagicon Rio de Janeiro 2017 July 12 – July 23 File:Flag of South Korea.svg South Korea [35]
59  Template:Flagicon Cluj-Napoca 2018 July 3 – July 14 File:Flag of the United States.svg United States [36]
60  Template:Flagicon Bath 2019 July 11 – July 22 File:Flag of the People's Republic of China.svg China
File:Flag of the United States.svg United States 		[37]
61  Template:Flagicon St. Petersburg (online)[n 3][n 4] 2020 September 19 – September 28 File:Flag of the People's Republic of China.svg China [41][42]
62  Template:Flagicon St. Petersburg (online)[n 5][n 4] 2021 July 14 – July 24 File:Flag of the People's Republic of China.svg China [44]
63  Template:Flagicon Oslo (hybrid) 2022 July 6 – July 16 File:Flag of the People's Republic of China.svg China [45]
64  Template:Flagicon Chiba 2023 July 2 – July 13 File:Flag of the People's Republic of China.svg China [46]
65  Template:Flagicon Bath[n 6] 2024 July 11 – July 22 File:Flag of the United States.svg United States [48]
66  Template:Flagicon Sunshine Coast 2025 July 10 – July 20 TBD [49]
67  Template:Flagicon Shanghai 2026 TBD TBD [50]
68  Template:Flagicon (TBA) 2027 TBD TBD [51]
69  Template:Flagicon (TBA) 2028 TBD TBD [52]

See also

Notes

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  1. ↑ 1991 marked the Soviet Union's last participation. From 1992, former Soviet Union countries – including Russia – entered separately.[11]
  2. ↑ At the time of the Olympiad, Hong Kong was under British colonial rule.
  3. ↑ Following the COVID-19 pandemic, the 2020 IMO was postponed from July to September hoping to keep the competition in-person. Then it was changed to a virtual event.[38]
  4. ↑ a b For the two virtual IMOs, all problems were selected by the Problem Selection Committee instead of the Jury made up of all team leaders, and problems were sent to the team leaders shortly before the exams for translation. Each team took the IMO exam at a national exam centre, and starting times of all exams were in the interval between 07:30 and 12:00 UTC (both ends included) of each exam day. An IMO Commissioner of another nationality was present at each centre to oversee the whole exam, and the IMO Chief Invigilator monitored all exams using webcams.[39][40]
  5. ↑ The 2021 IMO was originally to be held in Washington D.C., US. The US gave up hosting after the COVID-19 pandemic had started.[43][38]
  6. ↑ The originally determined location for hosting the 2024 IMO was Ukraine. Due to the recent conflicts between the country and Russia, the location was changed to Bath, in which the 2019 IMO was hosted.[47]

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References

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  1. ↑ a b Unofficial events were held in Finland and Luxembourg in 1980. Script error: No such module "citation/CS1".
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ a b c Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ Google Europe Blog: Giving young mathematicians the chance to shine Template:Webarchive. Googlepolicyeurope.blogspot.com (2011-01-21). Retrieved on 2013-10-29.
  11. ↑ a b Script error: No such module "citation/CS1".
  12. ↑ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".
  14. ↑ Script error: No such module "citation/CS1".
  15. ↑ Script error: No such module "citation/CS1".
  16. ↑ Script error: No such module "citation/CS1".
  17. ↑ Script error: No such module "citation/CS1".
  18. ↑ Script error: No such module "citation/CS1".
  19. ↑ Script error: No such module "citation/CS1".
  20. ↑ Script error: No such module "citation/CS1".
  21. ↑ Script error: No such module "citation/CS1".
  22. ↑ Script error: No such module "citation/CS1".
  23. ↑ Script error: No such module "citation/CS1".
  24. ↑ Script error: No such module "citation/CS1".
  25. ↑ Script error: No such module "citation/CS1".
  26. ↑ Script error: No such module "citation/CS1".
  27. ↑ Script error: No such module "citation/CS1".
  28. ↑ Script error: No such module "citation/CS1".
  29. ↑ Script error: No such module "citation/CS1".
  30. ↑ Script error: No such module "citation/CS1".
  31. ↑ Script error: No such module "citation/CS1".
  32. ↑ Script error: No such module "citation/CS1".
  33. ↑ Script error: No such module "citation/CS1".
  34. ↑ Script error: No such module "citation/CS1".
  35. ↑ Script error: No such module "citation/CS1".
  36. ↑ Script error: No such module "citation/CS1".
  37. ↑ Script error: No such module "citation/CS1".
  38. ↑ a b Script error: No such module "citation/CS1".
  39. ↑ Script error: No such module "citation/CS1".
  40. ↑ Script error: No such module "citation/CS1".
  41. ↑ Script error: No such module "citation/CS1".
  42. ↑ Script error: No such module "citation/CS1".
  43. ↑ Script error: No such module "citation/CS1".
  44. ↑ Script error: No such module "citation/CS1".
  45. ↑ Script error: No such module "citation/CS1".
  46. ↑ Script error: No such module "citation/CS1".
  47. ↑ Script error: No such module "citation/CS1".
  48. ↑ Script error: No such module "citation/CS1".
  49. ↑ Script error: No such module "citation/CS1".
  50. ↑ Script error: No such module "citation/CS1".
  51. ↑ Script error: No such module "citation/CS1".
  52. ↑ Script error: No such module "citation/CS1".

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Bibliography

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  • Script error: No such module "citation/CS1".
  • Script error: No such module "Citation/CS1".

External links

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