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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. Because the competition was initially founded for Eastern European countries participating in the Warsaw Pact, under the influence of the Eastern Bloc, the earlier IMOs were hosted only in Eastern European countries, gradually spreading to other nations.

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. The number of participating countries has since risen: 14 countries took part in 1969, 50 in 1989, and 104 in 2009.

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. (However, the 2010 case was controversial.) There have been other disqualifications of contestants due to cheating, but such cases are not officially made public. In January 2011, Google gave €1 million to the IMO organization to help cover the costs of the events from 2011 to 2015.

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
The closing ceremony of the 2015 IMO
# Venue Year Date Top-ranked country References
1  Romania Brașov and Bucharest 1959 June 23 – July 31  Romania
2  Romania Sinaia 1960 July 18 – July 25  Czechoslovakia
3  Hungary Veszprém 1961 July 6 – July 16  Hungary
4  Czechoslovakia České Budějovice 1962 July 7 – July 15  Hungary
5  Poland Warsaw and Wrocław 1963 July 5 – July 13  Soviet Union
6  Soviet Union Moscow 1964 June 30 – July 10  Soviet Union
7  East Germany East Berlin 1965 June 13 – July 13  Soviet Union
8  Bulgaria Sofia 1966 July 3 – July 13  Soviet Union
9  Socialist Federal Republic of Yugoslavia Cetinje 1967 July 7 – July 13  Soviet Union
10  Soviet Union Moscow 1968 July 5 – July 18  East Germany
11  Romania Bucharest 1969 July 5 – July 20  Hungary
12  Hungary Keszthely 1970 July 8 – July 22  Hungary
13  Czechoslovakia Žilina 1971 July 10 – July 21  Hungary
14  Poland Toruń 1972 July 5 – July 17  Soviet Union
15  Soviet Union Moscow 1973 July 5 – July 16  Soviet Union
16  East Germany Erfurt and East Berlin 1974 July 4 – July 17  Soviet Union
17  Bulgaria Burgas and Sofia 1975 July 3 – July 16  Hungary
18  Austria Lienz 1976 July 2 – July 21  Soviet Union
19  Socialist Federal Republic of Yugoslavia Belgrade 1977 July 1 – July 13  United States
20  Romania Bucharest 1978 July 3 – July 10  Romania
21  United Kingdom London 1979 June 30 – July 9  Soviet Union
-  The 1980 IMO was due to be held in Mongolia. It was cancelled, and split into two unofficial events in Europe.
22  United States Washington, D.C. 1981 July 8 – July 20  United States
23  Hungary Budapest 1982 July 5 – July 14  West Germany
24  France Paris 1983 July 3 – July 12  West Germany
25  Czechoslovakia Prague 1984 June 29 – July 10  Soviet Union
26  Finland Joutsa 1985 June 29 – July 11  Romania
27  Poland Warsaw 1986 July 4 – July 15  Soviet Union
 United States
28  Cuba Havana 1987 July 5 – July 16  Romania
29  Australia Sydney and Canberra 1988 July 9 – July 21  Soviet Union
30  West Germany Braunschweig 1989 July 13 – July 24  China
31  China Beijing 1990 July 8 – July 19  China
32  Sweden Sigtuna 1991 July 12 – July 23  Soviet Union
33  Russia Moscow 1992 July 10 – July 21  China
34  Turkey Istanbul 1993 July 13 – July 24  China
35  Hong Kong Hong Kong 1994 July 8 – July 20  United States
36  Canada Toronto 1995 July 13 – July 25  China
37  India Mumbai 1996 July 5 – July 17  Romania
38  Argentina Mar del Plata 1997 July 18 – July 31  China
39  Taiwan Taipei 1998 July 10 – July 21  Iran
40  Romania Bucharest 1999 July 10 – July 22  China
 Russia
41  South Korea Daejeon 2000 July 13 – July 25  China
42  United States Washington, D.C. 2001 July 1 – July 14  China
43  United Kingdom Glasgow 2002 July 19 – July 30  China
44  Japan Tokyo 2003 July 7 – July 19  Bulgaria
45  Greece Athens 2004 July 6 – July 18  China
46  Mexico Mérida 2005 July 8 – July 19  China
47  Slovenia Ljubljana 2006 July 6 – July 18  China
48  Vietnam Hanoi 2007 July 19 – July 31  Russia
49  Spain Madrid 2008 July 10 – July 22  China
50  Germany Bremen 2009 July 10 – July 22  China
51  Kazakhstan Astana 2010 July 2 – July 14  China
52  Netherlands Amsterdam 2011 July 13 – July 24  China
53  Argentina Mar del Plata 2012 July 4 – July 16  South Korea
54  Colombia Santa Marta 2013 July 18 – July 28  China
55  South Africa Cape Town 2014 July 3 – July 13  China
56  Thailand Chiang Mai 2015 July 4 – July 16  United States
57  Hong Kong Hong Kong 2016 July 6 – July 16  United States
58  Brazil Rio de Janeiro 2017 July 12 – July 23  South Korea
59  Romania Cluj-Napoca 2018 July 3 – July 14  United States
60  United Kingdom Bath 2019 July 11 – July 22  China
 United States
61  Russia St. Petersburg (online) 2020 September 19 – September 28  China
62  Russia St. Petersburg (online) 2021 July 14 – July 24  China
63  Norway Oslo (hybrid) 2022 July 6 – July 16  China
64  Japan Chiba 2023 July 2 – July 13  China
65  United Kingdom Bath 2024 July 11 – July 22  United States
66  Australia Sunshine Coast 2025 July 10 – July 20 TBD
67  China Shanghai 2026 TBD TBD
68  Hungary (TBA) 2027 TBD TBD
69  Saudi Arabia (TBA) 2028 TBD TBD

See also

Notes

  1. 1991 marked the Soviet Union's last participation. From 1992, former Soviet Union countries – including Russia – entered separately.
  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.
  4. ^ 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.
  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.
  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.

References

  1. ^ Unofficial events were held in Finland and Luxembourg in 1980. "UK IMO register". IMO register. Archived from the original on 2001-10-16. Retrieved 2011-06-17.
  2. "More IMO Facts". Archived from the original on 2001-08-20. Retrieved 2008-03-05.
  3. "Singapore International Mathematical Olympiad (SIMO) Home Page". Singapore Mathematical Society. Archived from the original on 2003-03-27. Retrieved 2008-02-04.
  4. "1st IMO 1959". International Mathematical Olympiad. Archived from the original on 2011-09-25. Retrieved 2011-06-20.
  5. ^ "Timeline". International Mathematical Olympiad. Archived from the original on 2007-10-11. Retrieved 2011-06-20.
  6. "International Mathematical Olympiad: Democratic People's Republic of Korea". Archived from the original on 2007-10-12. Retrieved 2010-07-17.
  7. Geoff Smith. "International Mathematical Olympiad 2010 UK leader's report, Almaty and Astana, Kazakhstan". UK IMO Register. Archived from the original on 2023-09-04. Retrieved 2023-09-06.
  8. "North Korea's disqualification at IMO 2010". Art of Problem Solving. Archived from the original on 2023-10-21. Retrieved 2023-09-06.
  9. Adam McBride. "34th International Mathematical Olympiad, Istanbul, Turkey, UK leader's report". UK IMO Register. Archived from the original on 2023-09-04. Retrieved 2023-11-24.
  10. Google Europe Blog: Giving young mathematicians the chance to shine Archived 2016-03-08 at the Wayback Machine. Googlepolicyeurope.blogspot.com (2011-01-21). Retrieved on 2013-10-29.
  11. ^ "Ranking of countries". International Mathematical Olympiad. Archived from the original on 2017-08-04. Retrieved 2011-06-20.
  12. ^ "US teams at the IMO". Mathematical Association of America. Archived from the original on 2011-07-27. Retrieved 2011-06-19.
  13. "IMO 1995". Canadian Mathematical Society. Archived from the original on 2008-02-29. Retrieved 2008-03-17.
  14. "IMO 1996". Canadian Mathematical Society. Archived from the original on 2008-02-23. Retrieved 2008-03-17.
  15. "IMO 1997" (in Spanish). Argentina. Archived from the original on 1998-12-05. Retrieved 2008-03-17.
  16. "IMO 1998". Republic of China. Archived from the original on 1998-12-05.
  17. "IMO 1999". Canadian Mathematical Society. Archived from the original on 2008-02-23. Retrieved 2008-03-17.
  18. "IMO 2000". Wolfram. Archived from the original on 2001-07-01. Retrieved 2008-03-17.
  19. "IMO 2001". Canadian Mathematical Society. Archived from the original on 2011-05-18. Retrieved 2008-03-17.
  20. Andreescu, Titu (2004). USA & International Mathematical Olympiads 2002. Mathematical Association of America. ISBN 978-0-88385-815-8.
  21. "IMO 2003". Japan. Archived from the original on 2008-03-06. Retrieved 2008-03-17.
  22. "IMO 2004". Greece. Archived from the original on 2004-06-27.
  23. "IMO 2005". Mexico. Archived from the original on 2005-07-11.
  24. "IMO 2006". Slovenia. Archived from the original on 2009-02-28. Retrieved 2008-03-17.
  25. "IMO 2007". Vietnam. Archived from the original on 2009-02-12. Retrieved 2008-03-17.
  26. "IMO 2008". Spain. Archived from the original on 2008-02-26. Retrieved 2008-03-17.
  27. "IMO 2009" (in German). Germany. Archived from the original on 2013-06-05. Retrieved 2008-03-17.
  28. "51st IMO 2010". IMO. Archived from the original on 2007-12-13. Retrieved 2011-07-22.
  29. "52nd IMO 2011". IMO. Archived from the original on 2007-12-13. Retrieved 2011-07-22.
  30. "53rd IMO 2012". IMO. Archived from the original on 2008-07-24. Retrieved 2011-07-22.
  31. "54th International Mathematical Olympiad". Universidad Antonio Nariño. Archived from the original on January 21, 2013. Retrieved July 20, 2012.
  32. "55th IMO 2014". IMO. Archived from the original on 2011-10-14. Retrieved 2016-09-10.
  33. "56th IMO 2015". IMO. Archived from the original on 2011-10-14. Retrieved 2016-09-10.
  34. "57th IMO 2016". IMO. Archived from the original on 2012-10-13. Retrieved 2016-09-10.
  35. "58th IMO 2017". IMO. Archived from the original on 2012-10-13. Retrieved 2016-09-10.
  36. "59th IMO 2018". IMO. Archived from the original on 2014-08-29. Retrieved 2016-09-10.
  37. "60th IMO 2019". IMO. Archived from the original on 2014-10-07. Retrieved 2016-09-10.
  38. ^ "Virtual IMO 2020 – Russia". International Mathematical Olympiad Foundation. 2020-07-11. Archived from the original on 2023-06-09. Retrieved 2022-07-16.
  39. "IMO 2020 (Virtual) Annual Regulations (June 2020)" (PDF). Archived (PDF) from the original on 2020-06-30.
  40. "IMO 2021 (Virtual) Annual Regulations (May 5 2021)" (PDF). Archived from the original (PDF) on 2021-07-12.
  41. "61st IMO 2020". IMO. Archived from the original on 2016-09-23. Retrieved 2020-11-10.
  42. "Annual Regulations for IMO 2020" (PDF). Archived (PDF) from the original on 2020-04-21. Retrieved 2020-04-22.
  43. "Original IMO 2021 site". Archived from the original on 2020-04-22.
  44. "62nd IMO 2021". IMO. Archived from the original on 2020-10-19. Retrieved 2016-11-17.
  45. "63rd IMO 2022". IMO. Archived from the original on 2017-08-02. Retrieved 2017-07-25.
  46. "64th IMO 2023". IMO. Archived from the original on 2018-09-09. Retrieved 2018-09-08.
  47. "IMO 2024". IMO. Archived from the original on 2022-06-08. Retrieved 2023-07-12.
  48. "65th IMO 2024". IMO. Archived from the original on 2022-07-15. Retrieved 2022-06-11.
  49. "66th IMO 2025". IMO. Archived from the original on 2020-07-01. Retrieved 2024-02-24.
  50. "67th IMO 2026". IMO. Archived from the original on 2023-07-12. Retrieved 2023-06-30.
  51. "68th IMO 2027". IMO. Archived from the original on 2024-01-07. Retrieved 2024-01-15.
  52. "69th IMO 2028". IMO. Archived from the original on 2024-08-25. Retrieved 2024-08-31.

Bibliography

External links

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