Alexander Tretiakov of Russia clung on to a rapidly decreasing lead over two-time defending champion Martins Dukurs to win his first skeleton world championship title on Saturday in St. Moritz, Switzerland.

Tretiakov led by nearly half a second ahead of Dukurs going into the fourth and final run, and he narrowly held off his Latvian rival to win by just 0.03 seconds. Dukurs clocked the fastest run of the competition in his final run to down the Olympia track, and Tretiakov's lead became smaller and smaller at every split time.

Bronze medallist Sergei Chudinov of Russia was 2.27 behind Tretiakov's combined time of 4 minutes, 32.35 seconds.

Canadians Eric Neilson and Jon Montgomery finished fourth and seventh, respectively.