Result W–L Date Tournament Tier Surface Partner Opponents Score Win 1–0 Aug 2003 Sopot Open , PolandInternational Clay Marcin Matkowski František Čermák Leoš Friedl 6–4, 6–7(7–9) , 6–3 Win 2–0 Feb 2004 Brasil Open , BrazilInternational Clay Marcin Matkowski Tomas Behrend Leoš Friedl6–2, 6–2 Win 3–0 Aug 2005 Sopot Open, Poland (2) International Clay Marcin Matkowski Lucas Arnold Ker Sebastián Prieto 7–6(9–7) , 6–4 Loss 3–1 Sep 2005 Campionati Internazionali di Sicilia , ItalyInternational Clay Marcin Matkowski Martín García Mariano Hood 2–6, 3–6 Loss 3–2 Feb 2006 Brasil Open, Brazil International Clay Marcin Matkowski Lukáš Dlouhý Pavel Vízner 1–6, 6–4, [3–10] Loss 3–3 Apr 2006 Barcelona Open , SpainIntl. Gold Clay Marcin Matkowski Mark Knowles Daniel Nestor 2–6, 7–6(7–4) , [5–10] Loss 3–4 Aug 2006 Connecticut Open , United StatesInternational Hard Marcin Matkowski Jonathan Erlich Andy Ram 3–6, 3–6 Win 4–4 Sep 2006 Romanian Open , RomaniaInternational Clay Marcin Matkowski Martín García Luis Horna 6–7(5–7) , 7–6(7–5) , [10–8] Loss 4–5 Oct 2006 Campionati Internazionali di Sicilia, Italy International Clay Marcin Matkowski Martín García Luis Horna6–7(1–7) , 6–7(2–7) Loss 4–6 Oct 2006 Swiss Indoors , SwitzerlandInternational Carpet (i) Marcin Matkowski Mark Knowles Daniel Nestor6–4, 4–6, [8–10] Win 5–6 Aug 2007 Sopot Open, Poland (3) International Clay Marcin Matkowski Martín García Sebastián Prieto6–1, 6–1 Loss 5–7 Aug 2007 Connecticut Open, United States International Hard Marcin Matkowski Mahesh Bhupathi Nenad Zimonjić 3–6, 3–6 Loss 5–8 Oct 2007 Open de Moselle , FranceInternational Hard (i) Marcin Matkowski Arnaud Clément Michaël Llodra 1–6, 4–6 Win 6–8 Oct 2007 Vienna Open , AustriaIntl. Gold Hard (i) Marcin Matkowski Tomas Behrend Christopher Kas 6–4, 6–2 Loss 6–9 Oct 2007 Madrid Open , SpainMasters Hard (i) Marcin Matkowski Bob Bryan Mike Bryan 3–6, 6–7(4–7) Loss 6–10 Apr 2008 Barcelona Open, Spain Intl. Gold Clay Marcin Matkowski Bob Bryan Mike Bryan3–6, 2–6 Win 7–10 Jun 2008 Warsaw Open , Poland (4) International Clay Marcin Matkowski Nikolay Davydenko Yuri Schukin 6–0, 3–6, [10–4] Loss 7–11 Sep 2008 Romanian Open, Romania International Clay Marcin Matkowski Nicolas Devilder Paul-Henri Mathieu 6–7(4–7) , 7–6(11–9) , [20–22] Loss 7–12 Oct 2008 Open de Moselle, France International Hard (i) Marcin Matkowski Arnaud Clément Michaël Llodra7–5, 3–6, [8–10] Win 8–12 Oct 2008 Madrid Open, Spain Masters Hard (i) Marcin Matkowski Mahesh Bhupathi Mark Knowles6–4, 6–2 Win 9–12 Jun 2009 Eastbourne International , United Kingdom250 Series Grass Marcin Matkowski Travis Parrott Filip Polášek 6–4, 6–4 Loss 9–13 Aug 2009 Washington Open , United States500 Series Hard Marcin Matkowski Martin Damm Robert Lindstedt 7–5, 7–6(7–3) Win 10–13 Oct 2009 Malaysian Open , Malaysia250 Series Hard (i) Marcin Matkowski Igor Kunitsyn Jaroslav Levinský 6–2, 6–1 Loss 10–14 Oct 2009 Shanghai Masters , ChinaMasters 1000 Hard Marcin Matkowski Julien Benneteau Jo-Wilfried Tsonga 2–6, 4–6 Win 11–14 Jun 2010 Eastbourne International, United Kingdom (2) 250 Series Grass Marcin Matkowski Colin Fleming Ken Skupski 6–3, 5–7, [10–8] Loss 11–15 Oct 2010 Malaysian Open, Malaysia 250 Series Hard (i) Marcin Matkowski František Čermák Michal Mertiňák 6–7(3–7) , 6–7(5–7) Loss 11–16 Oct 2010 China Open , China500 Series Hard Marcin Matkowski Bob Bryan Mike Bryan1–6, 6–7(5–7) Loss 11–17 Oct 2010 Shanghai Masters, China Masters 1000 Hard Marcin Matkowski Jürgen Melzer Leander Paes 5–7, 6–4, [5–10] Loss 11–18 Oct 2010 Vienna Open, Austria 250 Series Hard (i) Marcin Matkowski Daniel Nestor Nenad Zimonjić5–7, 6–3, [5–10] Loss 11–19 Sep 2011 US Open , United StatesGrand Slam Hard Marcin Matkowski Jürgen Melzer Philipp Petzschner 2–6, 2–6 Loss 11–20 Nov 2011 ATP World Tour Finals , United KingdomTour Finals Hard (i) Marcin Matkowski Max Mirnyi Daniel Nestor5–7, 3–6 Loss 11–21 Mar 2012 Dubai Tennis Championships , UAE500 Series Hard Marcin Matkowski Mahesh Bhupathi Rohan Bopanna 4–6, 6–3, [5–10] Win 12–21 Apr 2012 Barcelona Open, Spain 500 Series Clay Marcin Matkowski Marcel Granollers Marc López 2–6, 7–6(9–7) , [10–8] Win 13–21 May 2012 Madrid Open, Spain (2) Masters 1000 Clay Marcin Matkowski Robert Lindstedt Horia Tecău 6–3, 6–4 Loss 13–22 Mar 2013 Miami Open , United StatesMasters 1000 Hard Marcin Matkowski Aisam-ul-Haq Qureshi Jean-Julien Rojer 4–6, 1–6 Win 14–22 Jul 2013 German Open , Germany500 Series Clay Marcin Matkowski Alexander Peya Bruno Soares 3–6, 6–1, [10–8] Win 15–22 Jan 2014 Brisbane International , Australia250 Series Hard Daniel Nestor Juan Sebastián Cabal Robert Farah 6–7(4–7) , 6–4, [10–7] Loss 15–23 Apr 2014 Romanian Open, Romania 250 Series Clay Marcin Matkowski Jean-Julien Rojer Horia Tecău4–6, 4–6 Win 16–23 Sep 2014 Moselle Open , France250 Series Hard (i) Marcin Matkowski Marin Draganja Henri Kontinen 6–7(3–7) , 6–3, [10–8] Win 17–23 Feb 2015 Memphis Open , United States250 Series Hard (i) Santiago González Artem Sitak Donald Young 5–7, 7–6(7–1) , [10–8] Loss 17–24 Feb 2015 Mexican Open , Mexico500 Series Hard Santiago González Ivan Dodig Marcelo Melo 6–7(2–7) , 7–5, [3–10] Loss 17–25 Jul 2015 Croatia Open , Croatia250 Series Clay Santiago González Máximo González André Sá 6–4, 3–6, [5–10] Win 18–25 Feb 2016 Memphis Open, United States (2) 250 Series Hard (i) Santiago González Steve Johnson Sam Querrey 6–4, 6–4 Loss 18–26 Oct 2016 Chengdu Open , China250 Series Hard Pablo Carreño Busta Raven Klaasen Rajeev Ram 6–7(2–7) , 5–7