Nodirbek Abdusattorov, 17, dethroned Magnus Carlsen as World Rapid Chess Champion in Warsaw on Tuesday by beating Ian Nepomniachtchi in a tiebreaker.
Abdusattorov won the title along with a prize of $60,000 (€53,0444).
Abdusattorov only lost one match, against the Ukrainian Anton Korobov, and tied in five others. This gave him a score of 9.5 points.
He racked up seven wins in the 13 rounds of the tournament, including in his match against the previous champion, the Norwegian Carlsen.
Carlsen, 31, won five world chess titles in a row, most recently the World Chess Championship in Dubai. Before Abdusattorov's victory on Tuesday, Carlsen had had complete stranglehold on chess' most prestigious titles in all time formats.