1. International jury member and problem selection committee member (6 people),
2010 Astana, Kazakhstan, 51st International mathematical Olympiad (IMO).
2. Leader of Armenian national matematical olympic team,
2012, Mar del Plata, Argentina, 53th IMO.
3. Leader of Armenian national matematical olympic team,
2011, Amsterdam, The Netherlands, 52th IMO.
4. Leader of Armenian national matematical olympic team,
2009 Bremen, Germany, 50th IMO.
5. Deputy leader of Armenian national matematical olympic team,
2005 Mérida (Mexico), 46th IMO.
6. Deputy leader of Armenian national matematical olympic team,
2004 Athens, Greece, 45th IMO.
7. Deputy leader of Armenian national matematical olympic team,
2003 Tokyo, Japan, 44th IMO.
8. Deputy leader of Armenian national matematical olympic team,
2002 Glasgow, United Kingdom, 43rd IMO.
9. Deputy leader of Armenian national matematical olympic team,
2001 Washington, USA, 42nd IMO.
10. Deputy leader of Armenian national matematical olympic team,
2000 Taejon, Republic of Korea, 41st IMO.
11. Leader of Armenian national matematical olympic team,
1999 Bucharest, Romania, 40th IMO.
12. Leader of Armenian national matematical olympic team,
1998 Taipeh, Taiwan, 39th IMO.
13. Leader of Armenian national matematical olympic team,
1997 Mar del Plata, Argentina, 38th IMO.
14. Deputy leader of Armenian national matematical olympic team,
1996 Mumbai, India, 37th IMO.
15. Deputy leader of Armenian national matematical olympic team,
1993 Istanbul, Turkey, 34th IMO.
16. Deputy leader of Armenian national matematical olympic team,
1992 Moscow, Russian Federation, 33rd IMO.
Author of 11 problems included in the Shortlists of IMO, author of one of the hardest problems ever proposed in the history of IMO (details in the section “Hardest problem in IMO”).
The students of Nairi Sedrakyan have obtained 20 medals (1 Gold Medal, 4 Silver Medals, 15 Bronze Medals, one of which was received by his son Hayk Sedrakyan) in the International Mathematical Olympiad (IMO), providing more than half of the medals that the Republic of Armenia received in the history of its participation in IMO. So far it is the single Gold Medal of the Republic of Armenia in IMO.
More info here: Wikipedia Nairi Sedrakyan
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