The result was delete. The achievement of the subject is sufficient for mention in List of International Mathematical Olympiad participants but not for a standalone article per our inclusion criteria, which requires that independent and reliable sources indicate notability by writing in depth on a subject. SilkTork *YES! 20:33, 5 May 2011 (UTC)[reply]
The subject's only claim to fame is winning the IMO three times. There has been consensus in the past that this is not on its own considered to make the subject notable. The basic criterion for inclusion of a mathematician is WP:PROF, which the subject fails. For mathematics competitions, the criterion is usually WP:ATHLETE, which excludes student competitions. In specific cases, WP:GNG has been invoked, and in those cases there were generally other positive reasons for inclusion. For example, Reid Barton was written up in Science magazine, and in addition won the Putnam medal four times. Earlier discussions can be found at Wikipedia:Articles for deletion/Reid W. Barton (which was kept, largely because of arguments that I made there) and Wikipedia:Articles for deletion/Darij Grinberg (which was deleted). Sławomir Biały (talk) 19:40, 28 April 2011 (UTC)[reply]