Dmitri Sitak
Dmitri Yurievich Sitak is a Russian tennis player playing on the ATP Challenger Tour. On November 17, 2003, he reached his highest ATP singles ranking of World No. 356, whilst his highest doubles ranking of 138 was reached on March 22, 2010. He is the older brother of Artem Sitak, who is also a tennis player.
Challenger finals
| Legend |
| ATP Challenger Tour |
Doubles: 3 (2–1)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents in the final | Score |
| Winners | 1. | 10 May 2009 | Sanremo, Italy | Clay |  Yuri Schukin |  Daniele Bracciali Giancarlo Petrazzuolo | 6–4, 7–6 |
| Winners | 2. | 8 November 2009 | Chuncheon, South Korea | Hard |  Andis Juška |  Lee Hsin-han Yang Tsung-hua | 3–6, 6–3, |
| Runners-up | 3. | 14 March 2010 | Rabat, Morocco | Clay |  Oleksandr Dolgopolov Jr. |  Ilija Bozoljac Daniele Bracciali | 4–6, 4–6 |