|Full name||Sergei Sergeyevich Ostapenko|
|Date of birth||23 February 1986|
|Place of birth||Almaty, Kazakh SSR, Soviet Union|
|Height||1.90 m (6 ft 3 in)|
* Senior club appearances and goals counted for the domestic league only and correct as of 13 April 2015|
? National team caps and goals correct as of 4 August 2018
In 2003, Ostapenko had graduated from FC Almaty (FC Tsesna at that time) football academy and had been starting in the first team since then, before his transfer to FC Tobol in 2007. That was definitely an upward move in his career. He helped the team to win the Intertoto Cup that season, to finish second in the Super League and win the Kazakhstan Cup.
On 31 January 2008, along with Maksim Zhalmagambetov, Ostapenko signed a two-year contract with Royal Antwerp FC. The Belgian team's manager noted that the duo's youth, international experience and physical characteristics were key motivations for signing the pair. However, Ostapenko's European adventure was not particularly successful and he did not start a single game for the reds, only playing in the reserve team. Both Ostapenko and Maksim Zhalmagambetov shortly returned to Kazakhstan in the middle of the Kazakhstan Premier League 2008.
At the age of 21, Sergei earned his first cap on 6 June 2007 in Euro 2008 qualifier against Azerbaijan. He scored his first goal for the national team against Armenia, which also was a lone winning goal. Since then however, he has scored 3 more goals, all in World Cup Qualifiers, including 2 at home to Andorra.
Last update: 21 September 2014
|2007-08||Royal Antwerp||Belgium||Second Division||2||0||0|
|1||21 November 2007||Hanrapetakan Stadium, Yerevan||Armenia||Won||1-0||Euro 2008 qualifying|
|2||20 August 2008||Almaty Central Stadium, Almaty||Andorra||Won||3-0||2010 World Cup qualification|
|3||20 August 2008||Almaty Central Stadium, Almaty||Andorra||Won||3-0||2010 World Cup qualification|
|4||6 September 2008||Almaty Central Stadium, Almaty||Ukraine||Lost||3-1||2010 World Cup qualification|
|5||9 February 2011||Atatürk Stadium, Antalya||Belarus||Draw||1-1||Friendly|
|6||6 September 2011||Tofiq Bahramov Stadium, Baku||Azerbaijan||Lost||3-2||Euro 2012 qualifying|
|Correct as of 13 January 2017|