|Date of birth||21 December 1986|
|Place of birth||Saran, Soviet Union|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Left back|
|2006–2011||VfL Wolfsburg II||81||(2)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 26 February 2012.
† Appearances (Goals).
In the 2005–06 season, Karimov began playing for the VfL Wolfsburg reserve side, who operated in Oberliga Nord. The following season, he had appeared for the side on 19 occasions, now playing in Regionalliga Nord, before manager Bernd Hollerbach recommended him to Felix Magath's senior team.
On 8 December 2007, Karimov made his first Bundesliga appearance against VfB Stuttgart. On 30 January 2008 he played in a German Cup round of 16 match against Schalke 04. He scored a 90th minute equaliser, before scoring the decider in the penalty shootout. Karimov subsequently signed a professional contract with the Wolfsburg until 2010 and was promoted to the reserve team in summer 2009.
In February 2008, the Football Federation of Kazakhstan made an official invitation to Karimov to play for the national team. The player's final decision was to be made in the summer, after the season's finish. On 11 August 2010, Karimov made his first appearance in a 3–1 victory over Oman.
- Shainski, Efim (15 September 2009). "ДВА СЕРГЕЯ, КОТОРЫЕ ИГРАЮТ В ГЕРМАНИИ, А БОЛЕЮТ ЗА РОССИЮ". sport-express.ru (in Russian). Retrieved 16 June 2011.
- "Sergej Karimow unterschrieb Profivertrag bei den „Wölfen“". VfLWolfsburg.de. 13 December 2007. Retrieved 25 May 2009.[dead link]
- "Sergej Karimov invited to play for native country". Sbornaya.kz. 24 February 2008. Retrieved 25 May 2009.
- "Kazakhstan 3–1 Oman". kff.kz. Retrieved 26 February 2012.
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