Christopher Kas
Christopher Kas is a German retired professional tennis player. His career-high ATP singles ranking is World No. 224, which he reached in November 2002. His career-high in doubles is World No. 17, achieved in February 2012. At the 2012 Summer Olympics, he finished in fourth place in mixed doubles alongside Sabine Lisicki. In January 2015, Sabine appointed him to her coaching team.
Olympic medal matches
Mixed Doubles: 1 Bronze medal match (0–1)
ATP career finals
Doubles: 20 (5–15)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponent | Score |
| Runner-up | 1. | 16 July 2006 | Swedish Open, Båstad, Sweden | Clay |  Oliver Marach |  Jonas Björkman Thomas Johansson | 3–6, 6–4, |
| Runner-up | 2. | 23 July 2006 | Dutch Open, Amersfoort, Netherlands | Clay |  Lucas Arnold Ker |  Alberto Martín Fernando Vicente | 4–6, 3–6 |
| Runner-up | 3. | 29 July 2007 | Austrian Open, Kitzbühel, Austria | Clay |  Tomas Behrend |  Potito Starace  Luis Horna | 6–7, 6–7 |
| Runner-up | 4. | 14 October 2007 | BA-CA Tennis Trophy, Vienna, Austria | Hard | Tomas Behrend |  Mariusz Fyrstenberg Marcin Matkowski | 4–6, 2–6 |
| Runner-up | 5. | 2 March 2008 | PBZ Zagreb Indoors, Zagreb, Croatia | Hard |  Rogier Wassen |  Paul Hanley Jordan Kerr | 3–6, 6–3, |
| Winner | 1. | 13 July 2008 | Mercedes Cup, Stuttgart, Germany | Clay | Philipp Kohlschreiber | Michael Berrer Mischa Zverev | 6–3, 6–4 |
| Runner-up | 6. | 26 October 2008 | Davidoff Swiss Indoors, Basel, Switzerland | Hard | Philipp Kohlschreiber |  Mahesh Bhupathi  Mark Knowles | 3–6, 3–6 |
| Runner-up | 7. | 8 February 2009 | PBZ Zagreb Indoors, Zagreb, Croatia | Hard | Rogier Wassen |  Martin Damm Robert Lindstedt | 4–6, 3–6 |
| Winner | 2. | 14 June 2009 | Gerry Weber Open, Halle, Germany | Grass | Philipp Kohlschreiber | Andreas Beck  Marco Chiudinelli | 6–3, 6–4 |
| Runner-up | 8. | 18 July 2010 | Mercedes Cup, Stuttgart, Germany | Clay | Philipp Petzschner | Carlos Berlocq Eduardo Schwank | 6–7, 6–7 |
| Winner | 3. | 3 October 2010 | Thailand Open, Bangkok, Thailand | Hard |  Viktor Troicki |  Jonathan Erlich Jürgen Melzer | 6–4, 6–4 |
| Runner-up | 9. | 27 February 2011 | Delray Beach International Tennis Championships, Delray Beach, United States | Hard | Alexander Peya |  Scott Lipsky Rajeev Ram | 6–4, 4–6, |
| Runner-up | 10. | 1 May 2011 | BMW Open, München, Germany | Clay | Andreas Beck | Simone Bolelli Horacio Zeballos | 6–7, 4–6 |
| Runner-up | 11. | 31 July 2011 | Credit Agricole Suisse Open Gstaad, Gstaad, Switzerland | Clay | Alexander Peya | František Čermák  Filip Polášek | 3–6, 6–7 |
| Runner-up | 12. | 27 August 2011 | Winston-Salem Open, Winston-Salem, United States | Hard | Alexander Peya | Jonathan Erlich Andy Ram | 6–7, 4–6 |
| Runner-up | 13. | 6 January 2012 | Qatar ExxonMobil Open, Doha, Qatar | Hard | Philipp Kohlschreiber | Filip Polášek Lukáš Rosol | 3–6, 4–6 |
| Winner | 4. | 4 January 2013 | Qatar Open, Doha, Qatar | Hard | Philipp Kohlschreiber | Julian Knowle Filip Polášek | 7–5, 6–4 |
| Runner-up | 14. | 14 April 2013 | Grand Prix Hassan II, Casablanca, Morocco | Clay | Dustin Brown | Julian Knowle Filip Polášek | 3–6, 2–6 |
| Winner | 5. | 3 August 2013 | Bet-at-home Cup Kitzbühel, Kitzbühel, Austria | Clay | Martin Emmrich | František Čermák Lukáš Dlouhý | 6–4, 6–3 |
| Runner-up | 15. | 24 May 2014 | Düsseldorf Open, Düsseldorf, Germany | Clay | Martin Emmrich |  Santiago González Scott Lipsky | 5–7, 6–4, |