| Sergei Demekhine Сергей Демёхин | |
| Residence: | Moscow, Russia |
| Birth Date: | 1984 3, df=yes |
| Birth Place: | Kursk, Russian SFSR, Soviet Union |
| Turnedpro: | 2001 |
| Plays: | Right–handed |
| Careerprizemoney: | $25,848 |
| Singlesrecord: | 37–52 |
| Singlestitles: | 1 ITF |
| Highestsinglesranking: | No. 673 (30 July 2007) |
| Doublesrecord: | 106–69 |
| Doublestitles: | 8 ITF |
| Highestdoublesranking: | No. 438 (17 October 2005) |
Sergei Gennadievich Demekhine (Russian: Сергей Геннадьевич Демёхин;[1] born 30 March 1984) is a Russian tennis coach and former player. Under his guidance, Vera Zvonareva reached two Grand Slam finals – at the 2010 Wimbledon Championships and the 2010 US Open – and world No. 2 ranking. Demekhine also occasionally used to work as a model for Armani, Rocco Barocco, and Abercrombie & Fitch.[2]
Demekhine was born on 30 March 1984 in Kursk and currently resides in Moscow.[3]
Since 2017, he has been married to Russian tennis player Veronika Kudermetova, whom he also coaches.
As a professional tennis player, Demekhine won one ITF Futures title in singles, and eight in doubles. He played the qualifications for the Kremlin Cup in 2001,[4] 2002,[5] 2003[6] 2006[7] and 2008,[8] but never reached the main draw. Demekhin made two appearances in a ATP Tour main draw in doubles, both at the Kremlin Cup. In 2005, he and Igor Kunitsyn lost to Mariusz Fyrstenberg and Răzvan Sabău 3–5, 4–5 in the first round. In 2008, Demekhin partnered with Konstantin Kravchuk, but they were beaten by Sergiy Stakhovsky and Potito Starace 7–6(4), 1–6, [10–7] in the first round. He has been inactive since 2009.
Demekhine briefly coached Russian player Alla Kudryavtseva,[9] then coached Vera Zvonareva. The two began working together in April 2010 after the 2010 Family Circle Cup in Charleston, South Carolina.[10] At first, he was her hitting partner and then became her coach.[11] Under his guidance, Zvonareva reached the finals of the 2010 Wimbledon Championships[12] [13] and the 2010 US Open,[14] the semifinals of the 2011 Australian Open,[15] and the world No. 2 ranking.[16] In April 2011, Vera Zvonareva split with Demekhine.[17]
He currently is coaching his wife Veronika Kudermetova.
| Outcome | Date | Tournament | Surface | Partner | Opponents | Score | ||
|---|---|---|---|---|---|---|---|---|
| Runner–up | 1. | 4 November 2001 | Sardinia, Italy | Hard |  Igor Kunitsyn |  Stefano Mocci Ivan Stelko | 3–6, 4–6 | |
| Runner–up | 2. | 25 November 2001 | Sardinia, Italy | Hard | Igor Kunitsyn |  Josh Goffi  Chris James | 3–6, 6–7(4) | |
| Runner–up | 3. | 4 May 2002 | Mumbai, India | Hard | Ivan Syrov |  Mustafa Ghouse Vijay Kannan | 3–6, 6–7(3) | |
| Runner–up | 4. | 30 June 2002 | Sardinia, Italy | Clay | Stefano Tarallo | Florian Allgauer  Federico Cardinali | 7–5, 2–6, 4–6 | |
| Runner–up | 5. | 25 August 2002 | Saransk, Russia | Clay | Ivan Syrov | Teymuraz Gabashvili Alexander Pavlioutchenkov | 4–6, 6–7(3) | |
| Runner–up | 6. | 15 December 2002 | Ourense, Spain | Hard | Ivan Syrov |  Oliver Freelove  Joan Jiménez Guerra | 4–6, 2–6 | |
| Runner–up | 7. | 13 April 2003 | Frascati, Italy | Clay | Ivan Syrov |  Gergely Kisgyörgy Giancarlo Petrazzuolo | 4–6, 2–1 ret. | |
| Winners | 1. | 29 August 2004 | Krasnoarmeisk, Russia | Hard | Alexander Pavlioutchenkov | Philipp Mukhometov Evgueni Smirnov | 6–2, 6–4 | |
| Winners | 2. | 17 April 2005 | Qarshi, Uzbekistan | Hard | Igor Kunitsyn |  Murad Inoyatov Denis Istomin | 6–4, 5–7, 6–4 | |
| Runner–up | 8. | 7 May 2005 | Namangan, Uzbekistan | Hard | Andrei Stoliarov | Raven Klaasen Konstantin Kravchuk | 2–6, 7–6(5), 6–7(4) | |
| Winners | 3. | 11 September 2005 | Minsk, Belarus | Clay | Alexandre Krasnoroutskiy | Konstantin Kravchuk Denis Matsukevich | 7–6(8), 7–6(5) | |
| Winners | 4. | 18 September 2005 | Minsk, Belarus | Hard | Alexandre Krasnoroutskiy | Konstantin Kravchuk Denis Matsukevich | 6–2, 4–6, 6–1 | |
| Runner–up | 9. | 16 July 2006 | Carpi, Italy | Clay | Luca Vanni | Mattia Livraghi Matteo Volante | 6–1, 6–7(8), 4–6 | |
| Winners | 5. | 23 July 2006 | Carpi, Italy | Clay | Luca Vanni | Hermes Gamonal Guillermo Hormazábal | 6–2, 6–3 | |
| Winners | 6. | 17 February 2008 | La Habana, Cuba | Hard |  Pavel Katliarov |  Luis Javier Cuellar Contreras  Roberto Maytín | 6–7(2), 6–4, [10–5] | |
| Runner–up | 10. | 24 February 2008 | La Habana, Cuba | Hard | Pavel Katliarov | Piero Luisi Roberto Maytín | 1–6, 6–4, [10–8] | |
| Winners | 7. | 12 April 2008 | Moscow, Russia | Carpet (i) | Konstantin Kravchuk | Chris Eaton Alexander Slabinsky | 6–1, 6–2 | |
| Winners | 8. | 23 May 2008 | Bucharest, Romania | Clay | Pavel Katliarov |  Victor-Mugurel Anagnastopol  Thomas Cazes Carrere | 2–6, 7–5, [10–8] | |
| Runner–up | 11. | 21 June 2008 | Minsk, Belarus | Hard | Pavel Katliarov | Pierre-Ludovic Duclos Dmitri Sitak | 5–7, 4–6 | |
| Runner–up | 12. | 21 September 2008 | Sochi, Russia | Clay | Valery Rudnev | Mikhail Fufygin Vitali Reshetnikov | 2–6, 1–6 |