Cup 2007 WWC: Women's World Champion J07 and J08: World Junior Champions 2007 and 2008 R: Rating (average of July 2008 and January 2009 ratings is used) E08 and E09: European Individual Championships 2008 and 2009 AM08: Pan American Chess Championship 2008 AM09: Continental Absolute Chess Championship Americas 2009 AS: Asian Chess Championship 2009 AF: African Chess Championship 2009 Z2.1, Z2.2, Z2.3, Z2.4, Z2.5, Z3.1, Z3.2, Z3.3, Z3.4, Z3.5, Z3.6: Zonal tournaments PN: FIDE president nominee ON: Organizer nominee Calendar Summary of results Round one In the first round of the tournament all of the top 30 seeded players progressed, with the sole exception of Slovakian Sergei Movsesian (16), who was eliminated by the Chinese 113th seed Yu Yangyi. Judit Polgár achieved a walkover, due to her opponent Duško Pavasovič withdrawing from the competition due to injury. The round was notable for the 16-game match between Pavel Tregubov and Varuzhan Akobian: after each winning with white over the first two days, their tiebreak held a marathon of four rapid games followed by ten blitz games. The two players fought until near 1 a.m. local time for the right to face Ruslan Ponomariov in the second round (which would start the next morning), Akobian finally achieving the decisive two-point advantage in the final bout before an Armageddon game would have been required. Round two The first day of Round Two included a number of upsets. The highest seed to have won their match was Alexander Grischuk (8), as Peter Svidler (3), Alexander Morozevich (4), Teimour Radjabov (5) and Vassily Ivanchuk (6) all lost and the remaining highest seeds (Gelfand, Gashimov and Ponomariov) drew. On the next day of matches, Morozevich, Radjabov and Ivanchuk were all eliminated, and exactly half of the matches went to tie-breaks. Of the 32 players to reach Round Three, all but seven players had been originally seeded in the top 32. Round three Sixteen-year-old Wesley So, who had upset Ivanchuk in Round Two, achieved another major upset, defeating Gata Kamsky, the 2007 winner, 1½-½. In the second rapid tiebreak, Chinese players Wang Yue and Li Chao were not at their seats for the start of the round, and lost the game, and their matches against Bacrot and Gashimov. Round four This round marked the departure of most of the youthful players from the World Cup. Wesley So (16), Fabiano Caruana (17) and Maxime Vachier-Lagrave (19) were eliminated