International Mathematical Olympiad

The International Mathematical Olympiad (IMO) is a six-problem, 42-point math competition held over two days. More than 90 nations compete in this annual event, which is the oldest of the International Science Olympiads. Questions cover a wide range of mathematics. Past IMO questions can be found here.

The U.S. has been represented by a small team of exceptionally talented high school students each year since 1974. 

Top scorers of the USA Mathematical Olympiad attend the  Mathematical Olympiad Summer Program (MOSP), an intensive training program for exceptional high school students held at the University of Nebraska, Lincoln. The U.S. IMO team is selected during MOSP.

The MAA-produced documentary Hard Problems follows the U.S. team during the 2006 IMO. 

Archive of U.S. IMO Results

IMO Archives

2012

  • USA IMO 2012 Team Announced! (May 14, 2012)
  • Official site of the 2012 IMO
  • 2011

  • USA Team Places Second, Brings Home Six Gold Medals from 52nd International Mathematical Olympiad (July 22, 2011)
  • Netherland’s Minister of Education Welcomes IMO 2011 Contestants (July 15, 2011)
  • USAMO Medalist Benjamin Gunby Profiled in D.C. Paper (June 29, 2011)
  • The 2011 IMO team members have been announced! (June 14, 2011)
  • Official site of the 2011 IMO
  • 2010

  • President Obama Congratulates IMO Medalist Evan O’Dorney (August 9, 2010)
  • International Math Olympiad Results Bigger News Elsewhere Than in US (July 15, 2010)
  • US Team Places Third, O'Dorney Earns Second Best Score at the 51st International Mathematical Olympiad (July 12, 2010)
  • Official Site of the 51st International Mathematical Olympiad
  • 2009

  • U.S. IMO Team Brings Home Two Gold Medals (July 20, 2009)
  • 2009 U.S. International Mathematical Olympiad Team Announced (June 26, 2009)
  • Official Site of the 50th International Mathematical Olympiad
  • 2008

  • Alex Zhai Earns Perfect Score as U.S. Finishes Third (July 21, 2008)
  • 2008 U.S. International Mathematical Olympiad Team Announced (June 16, 2008)
  • Official Site of the 49th International Mathematical Olympiad
  • 2007

  • International Mathematical Olympiad: Russian Team Wins; U.S. Team Is Fifth (July 30, 2007)
  • Official Site of the 48th International Mathematical Olympiad
  • Math Competitions: Sherry Gong's Striking Success (September 19, 2007)

    Other MAA Competitions

  • USA Mathematical Olympiad
  • China Girls Math Olympiad
  • Contribute to American Math Competitions