Dmitri Sitak
Dmitri Yurievich Sitak is a Russian tennis player playing on the ATP Challenger Tour. On 17 November 2003, he reached his highest ATP singles ranking of World No. 356 whilst his highest doubles ranking of No. 138 was reached on 22 March 2010. He is the older brother of Artem Sitak, who is also a tennis player. Sitak was the first player that future world number one player Daniil Medvedev beat as a professional, when in March 2011 Medvedev won their match at an ITF Futures event in Russia.
Challenger finals
Doubles: 3 (2–1)
| Result | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Win | 1. | 10 May Sanremo Tennis Cup|2009] | Sanremo, Italy | Clay |  |