List of International Mathematical Olympiads

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 hold in Mongolia was canceled due to 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] Sources differ about the cities hosting some of the early IMOs and the exact dates when they took place.[4]

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.[5] The number of participating countries has since risen: 14 countries took part in 1969, 50 in 1989, and 104 in 2009.[6]

North Korea is the only country to have been caught cheating, resulting in its disqualification at the 32nd IMO in 1991 and the 51st IMO in 2010.[7] In January 2011, Google gave €1 million to the IMO organization to help cover the costs of the events from 2011–2015.[8]

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

See also

Notes

  1. ↑ 1991 marked the Soviet Union's last participation. From 1992, former Soviet Union countries – including Russia – entered separately.[9]
  2. ↑ At the time of the Olympiad, Hong Kong was not possessed by the People's Republic of China.

References

General
  • Olson, Steve (2004). Count Down. Houghton Miffln. ISBN 0-618-25141-3.
  • Lord, Mary (July 23, 2001). "Michael Jordans of math – U.S. Student whizzes stun the cipher world". U.S. News & World Report. 131 (3): 26.
Specific
  1. 1 2 Unofficial events were held in Finland and Luxembourg in 1980. "UK IMO register". IMO register. Retrieved 2011-06-17.
  2. ↑ "More IMO Facts". Retrieved 2008-03-05.
  3. ↑ "Singapore International Mathematical Olympiad (SIMO) Home Page". Singapore Mathematical Society. Retrieved 2008-02-04.
  4. ↑ "Norwegian Students in International Mathematical Olympiad". Archived from the original on 2006-10-20. Retrieved 2008-03-05.
  5. ↑ "1st IMO 1959". International Mathematical Olympiad. Retrieved 2011-06-20.
  6. 1 2 3 "Timeline". International Mathematical Olympiad. Retrieved 2011-06-20.
  7. ↑ "International Mathematical Olympiad: Democratic People's Republic of Korea". Retrieved 2010-07-17.
  8. ↑ Google Europe Blog: Giving young mathematicians the chance to shine. Googlepolicyeurope.blogspot.com (2011-01-21). Retrieved on 2013-10-29.
  9. 1 2 "Ranking of countries". International Mathematical Olympiad. Retrieved 2011-06-20.
  10. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 "US teams at the IMO". Mathematical Association of America. Archived from the original on 2011-07-27. Retrieved 2011-06-19.
  11. ↑ "IMO 1995". Canadian Mathematical Society. Archived from the original on 2008-02-29. Retrieved 2008-03-17.
  12. ↑ "IMO 1996". Canadian Mathematical Society. Archived from the original on 2008-02-23. Retrieved 2008-03-17.
  13. ↑ "IMO 1997" (in Spanish). Argentina. Retrieved 2008-03-17.
  14. ↑ "IMO 1998". Republic of China. Archived from the original on 1998-12-05.
  15. ↑ "IMO 1999". Canadian Mathematical Society. Archived from the original on 2008-02-23. Retrieved 2008-03-17.
  16. ↑ "IMO 2000". Wolfram. Retrieved 2008-03-17.
  17. ↑ "IMO 2001". Canadian Mathematical Society. Archived from the original on 2011-05-18. Retrieved 2008-03-17.
  18. ↑ Andreescu, Titu (2004). USA & International Mathematical Olympiads 2002. Mathematical Association of America. ISBN 978-0-88385-815-8.
  19. ↑ "IMO 2003". Japan. Archived from the original on 2008-03-06. Retrieved 2008-03-17.
  20. ↑ "IMO 2004". Greece. Archived from the original on 2004-06-27.
  21. ↑ "IMO 2005". Mexico. Archived from the original on 2005-07-11.
  22. ↑ "IMO 2006". Slovenia. Archived from the original on 2009-02-28. Retrieved 2008-03-17.
  23. ↑ "IMO 2007". Vietnam. Archived from the original on 2009-02-12. Retrieved 2008-03-17.
  24. ↑ "IMO 2008". Spain. Retrieved 2008-03-17.
  25. ↑ "IMO 2009" (in German). Germany. Retrieved 2008-03-17.
  26. ↑ "51st IMO 2010". IMO. Retrieved 2011-07-22.
  27. ↑ "52nd IMO 2011". IMO. Retrieved 2011-07-22.
  28. ↑ "53rd IMO 2012". IMO. Retrieved 2011-07-22.
  29. ↑ "54th International Mathematical Olympiad". Universidad Antonio Nariño. Archived from the original on January 21, 2013. Retrieved July 20, 2012.
  30. ↑ "55th IMO 2014". IMO. Retrieved 2016-09-10.
  31. ↑ "56th IMO 2015". IMO. Retrieved 2016-09-10.
  32. ↑ "57th IMO 2016". IMO. Retrieved 2016-09-10.
  33. ↑ "58th IMO 2017". IMO. Retrieved 2016-09-10.
  34. ↑ "59th IMO 2018". IMO. Retrieved 2016-09-10.
  35. ↑ "60th IMO 2019". IMO. Retrieved 2016-09-10.
  36. ↑ "61st IMO 2020". IMO. Retrieved 2016-09-10.
  37. ↑ "62nd IMO 2021". IMO. Retrieved 2016-11-17.
  38. ↑ "63rd IMO 2022". IMO. Retrieved 2017-07-25.
  39. ↑ "64th IMO 2023". IMO. Retrieved 2018-09-08.

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