Sergey Kovalev (born on April 2, 1983) is a Russian professional boxer from Chelyabinsk, Russia but based in Florida. He is the current light heavyweight WBO champion and is known for his devastating punching power. He is signed with Main Events and trained by John David Jackson.
Kovalev started his career with a first round TKO of Daniel Chavez at the Greenboro Coliseum in Greensboro, North Carolina. He has since gone on to record 21 wins (19 by KO) with one fight ending in a draw as a result of a technical decision. On 17th August 2013 he fought Nathan Cleverly for the WBO light heavyweight title, winning by 4th round TKO.
- Record: 215 fights, 193 wins
- 2000 Russian Junior Championships Silver medalist at Light Welterweight
- 2001 Russian Junior Championships Silver medalist at Middleweight
- 2004 Russian Championships Silver medalist at Middleweight, losing to Matvey Korobov
- 2005 Russian Championships Gold medalist at Middleweight
- 2007 Russian Championships Bronze medalist at Light Heavyweight, losing to Artur Beterbiev
- 2008 Russian Championships Silver medalist at Light Heavyweight
- 2005 World Military Championships Gold medalist at Light Heavyweight, in Pretoria, South Africa
- 2006 World Military Championships Silver medalist at Light Heavyweight, in Warendorf, Germany
- 2007 World Military Championships Gold medalist at Light Heavyweight, in Hyderabad, India