Michal Mertiňák
Michal Mertiňák is a professional tennis player from Slovakia. He turned professional in 1999, and has won six doubles titles in his career on the ATP Tour. He reached his career high doubles ranking of World No. 12 in February 2010. He played in the 2005 Davis Cup for Slovakia, who finished runner-up to Croatia. Mertiňák played two ties in the final, including losing the deciding fifth rubber to Mario Ančić.
From 2009 until 2010 his doubles partner was Czech František Čermák. He has won five tournaments with him in the 2009 season. Now he partners up with André Sá.
ATP career finals
Doubles: 23 (13 titles, 10 runners-up)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents in the final | Score |
| Winner | 1. | January 2, 2006 | Chennai Open, Chennai, India | Hard |  Petr Pála |  Prakash Amritraj Rohan Bopanna | 6–2, 7–5 |
| Winner | 2. | January 30, 2006 | PBZ Zagreb Indoors, Zagreb, Croatia | Carpet | Jaroslav Levinský |  Davide Sanguinetti Andreas Seppi | 7–6, 6–1 |
| Winner | 3. | July 29, 2007 | Croatia Open Umag, Umag, Croatia | Clay | Lukáš Dlouhý | Jaroslav Levinský David Škoch | 6–1, 6–1 |
| Winner | 4. | September 17, 2007 | Romanian Open, Bucharest, Romania | Clay |  Oliver Marach |  Martín García Sebastián Prieto | 7–6, 7–6 |
| Winner | 5. | March 1, 2008 | Abierto Mexicano Telcel, Acapulco, Mexico | Clay | Oliver Marach | Agustín Calleri Luis Horna | 6–2, 6–7, |
| Winner | 6. | July 14, 2008 | Croatia Open Umag, Umag, Croatia | Clay | Petr Pála | Carlos Berlocq Fabio Fognini | 2–6, 6–3, |
| Winner | 7. | February 28, 2009 | Abierto Mexicano Telcel, Acapulco, Mexico | Clay | František Čermák |  Łukasz Kubot Oliver Marach | 4–6, 6–4, |
| Winner | 8. | July 19, 2009 | Mercedes Cup, Stuttgart, Germany | Clay | František Čermák |  Victor Hănescu Horia Tecău | 7–5, 6–4 |
| Winner | 9. | August 2, 2009 | Croatia Open Umag, Umag, Croatia | Clay | František Čermák |  Johan Brunström Jean-Julien Rojer | 6–4, 6–4 |
| Winner | 10. | September 26, 2009 | BRD Năstase Ţiriac Trophy, Bucharest, Romania | Clay | František Čermák | Johan Brunström Jean-Julien Rojer | 6–2, 6–4 |
| Runner-up | 1. | October 25, 2009 | Kremlin Cup, Moscow, Russia | Hard | František Čermák |  Pablo Cuevas Marcel Granollers | 4–6, 7–5, |
| Winner | 11. | November 8, 2009 | Valencia Open 500, Valencia, Spain | Hard | František Čermák | Marcel Granollers Tommy Robredo | 6–4, 6–3 |
| Runner-up | 2. | January 11, 2010 | Qatar ExxonMobil Open, Doha, Qatar | Hard | František Čermák | Guillermo García-López Albert Montañés | 6–4, 7–5 |
| Runner-up | 3. | August 1, 2010 | ATP Studena Croatia Open Umag, Umag, Croatia | Clay | František Čermák | Leoš Friedl Filip Polášek | 6–3, 7–6 |
| Winner | 12. | October 3, 2010 | Proton Malaysian Open, Kuala Lumpur, Malaysia | Hard | František Čermák | Mariusz Fyrstenberg Marcin Matkowski | 7–6, 7–6 |
| Runner-up | 4. | February 19, 2012 | Brasil Open, São Paulo, Brazil | Clay |  André Sá |  Eric Butorac Bruno Soares | 6–3, 4–6, |
| Runner-up | 5. | February 26, 2012 | Copa Claro, Buenos Aires, Argentina | Clay | André Sá | David Marrero Fernando Verdasco | 4–6, 4–6 |
| Runner-up | 6. | March 4, 2012 | Delray Beach International Tennis Championships, Delray Beach, United States | Hard | André Sá |  Colin Fleming Ross Hutchins | 6–2, 6–7, |
| Runner-up | 7. | July 15, 2012 | MercedesCup, Stuttgart, Germany | Clay | André Sá |  Jérémy Chardy Łukasz Kubot | 1–6, 3–6 |
| Winner | 13. | October 20, 2012 | Kremlin Cup, Moscow, Russia | Hard | František Čermák | Simone Bolelli Daniele Bracciali | 7–5, 6–3 |
| Runner-up | 8. | February 17, 2013 | Brazil Open, São Paulo, Brazil | Clay | František Čermák | Alexander Peya Bruno Soares | 7–6, 2–6, |
| Runner-up | 9. | February 9, 2014 | PBZ Zagreb Indoors, Zagreb, Croatia | Hard |  Philipp Marx |  Jean-Julien Rojer Horia Tecău | 6–3, 4–6, |
| Runner-up | 10. | July 27, 2014 | Crédit Agricole Suisse Open Gstaad, Gstaad, Switzerland | Clay |  Rameez Junaid | Andre Begemann Robin Haase | 3–6, 4–6 |