Nikolay Sergeevich Sazhin (Russian: Николай Сергеевич Сажин; September 15, 1988, Krasnoyarsk, Russia, then USSR) is a former world champion of chess boxing.^[1] Sazhin has an Elo rating of 1911.^{[citation needed]} Sazhin's overall record was at that point 49–13–0. His alias is "The Siberian Express" or "The Chairman" (Председатель, Predsedatel').

This biography of a living person needs additional citations for verification. (May 2012)

Sazhin was 19 when he won the title from Frank Stoldt in July 2008.^[1][2] He defended his title, which wasn't actually his, as somebody else had won it in the meantime, in London in March 2012 against Andy Costello winning by checkmate in the 9th round. The news posted on May 20, 2013, revealed that Sazhin's unknown title was sanctioned by World Chessboxing Association (WCBA).^[3] In addition, the official website of WCBA showed that Nikolay Sazhin was sanctioned as the current world champion at double weight divisions of Light heavyweight and Heavyweight.^[4]