He has five individual World Cup victories including one Tour de Ski title,[2] as well as gold and silver medals at the 2014 Winter Olympics.

[3] Legkov finished in fourth place after a strong final push to catch then-leader Johan Olsson of Sweden at the 2010 Winter Olympics' 30 km double pursuit.

Alexander Legkov was Total winner of Tour de Ski 2012–13 when he defeated Dario Cologna, Maxim Vylegzhanin and Petter Northug racing up Alpe Cermis on 6 January 2013.

[5] In December 2016, the International Ski Federation provisionally suspended six Russian cross-country skiers linked to doping violations during the 2014 Winter Olympics, including Legkov.

[7][8] In February 2018, the international Court of Arbitration for Sport reinstated Legkov's results in Sochi 2014, including two medals, and annulled disqualification imposed by IOC.