| Brescia challenger | Round | Result | H | A | 
		
			| 21.11. |  | Bozol / Zelen - Basic / Mekti | F | 6-0, 6-3 | 1.52 | 2.36 | 
		
			| 20.11. |  | Bozol / Zelen - Koolh / Midde | SF | 69-7, 6-3, 11-9 | 1.85 | 1.82 | 
		
			| 19.11. |  | Bozol / Zelen - Dusto / Motti | QF | 6-3, 6-3 | 1.28 | 3.53 | 
		
			| 17.11. |  | Bozol / Zelen - Ball / Brown | R16 | 7-68, 7-65 | 1.89 | 1.83 | 
		
			| Bratislava challenger | Round | Result | H | A | 
		
			| 14.11. |  | Bozol / Zelen - Skups / Skups | F | 7-63, 4-6, 10-5 | 1.86 | 1.85 | 
		
			| 13.11. |  | Bozol / Zelen - Fyrst / Przys | SF | 6-4, 6-2 | 1.72 | 2.01 | 
		
			| 12.11. |  | Bozol / Zelen - Satra / Smirn | QF | 6-4, 6-2 | 1.47 | 2.46 | 
		
			| 09.11. |  | Bozol / Zelen - Klein / Molca | R16 | 6-4, 6-2 | 1.05 | 7.77 | 
		
			| Eckental challenger | Round | Result | H | A | 
		
			| 02.11. |  | Bemel / Petzs - Junai / Zelen | R16 | 6-2, 6-1 | 1.60 | 2.20 | 
		
			| Moscow | Round | Result | H | A | 
		
			| 23.10. |  | Ruble / Tursu - Junai / Zelen | SF | 7-5, 1-6, 10-7 | 2.03 | 1.71 | 
		
			| 21.10. |  | Junai / Zelen - Bedna / Marti | QF | 7-66, 6-3 | 1.69 | 2.05 | 
		
			| 19.10. |  | Junai / Zelen - Donsk / Kravc | R16 | 6-4, 6-2 | 1.65 | 2.13 | 
		
			| Mons challenger | Round | Result | H | A | 
		
			| 11.10. |  | Bemel / Petzs - Junai / Zelen | F | 6-3, 6-1 | 1.83 | 1.83 | 
		
			| 10.10. |  | Junai / Zelen - Skups / Skups | SF | 69-7, 7-65, 10-4 | 1.72 | 1.99 | 
		
			| 09.10. |  | Junai / Zelen - Krets / Satsc | QF | 1-6, 7-63, 10-3 | 1.84 | 1.83 | 
		
			| 06.10. |  | Junai / Zelen - Autho / Desei | R16 | 7-68, 7-63 | 1.29 | 3.31 | 
		
			| Orleans challenger | Round | Result | H | A | 
		
			| 03.10. |  | Lamas / Marti - Skugo / Zelen | SF | 4-6, 6-3, 10-5 | 2.03 | 1.70 | 
		
			| 30.09. |  | Skugo / Zelen - Couac / Teixe | QF | 6-4, 6-3 | 1.50 | 2.42 | 
		
			| Saint Petersburg | Round | Result | H | A | 
		
			| 22.09. |  | Bury / Istom - Haide / Zelen | R16 | 4-6, 7-62, 10-8 | 1.36 | 2.88 | 
		
			| Davis Cup | Round | Result | H | A | 
		
			| 19.09. |  | Kubot / Matko - Marti / Zelen |  | 6-3, 6-4, 6-4 | 1.20 | 4.23 | 
		
			| St. Remy challenger | Round | Result | H | A | 
		
			| 11.09. |  | Skups / Skups - Marti / Zelen | F | 6-4, 6-1 | 1.61 | 2.16 | 
		
			| 10.09. |  | Marti / Zelen - Gombo / Lacko | SF |  |  |  | 
		
			| 10.09. |  | Marti / Zelen - Nys H / Veger | QF | 4-6, 6-3, 10-7 | 1.27 | 3.43 | 
		
			| Manerbio challenger | Round | Result | H | A | 
		
			| 26.08. |  | Behar / Lopez - Marti / Zelen | QF | 6-1, 7-66 | 2.26 | 1.56 | 
		
			| 25.08. |  | Marti / Zelen - Carba / Riba | R16 | 6-3, 6-3 | 1.44 | 2.50 | 
		
			| Cordenons challenger | Round | Result | H | A | 
		
			| 23.08. |  | Marti / Zelen - Marca / Sanci | F | 6-4, 5-7, 10-8 | 2.01 | 1.72 | 
		
			| 22.08. |  | Marti / Zelen - Bedna / Skups | SF | 7-64, 5-7, 11-9 | 1.62 | 2.16 | 
		
			| 21.08. |  | Marti / Zelen - Lee H / Motti | QF | 6-2, 6-3 | 1.81 | 1.87 | 
		
			| 20.08. |  | Marti / Zelen - Cipol / Ungur | R16 | 7-62, 7-60 |  |  | 
		
			| Prague 2 challenger | Round | Result | H | A | 
		
			| 14.08. |  | Betov / Elgin - Kowal / Zelen | SF | 6-3, 7-64 | 1.62 | 2.16 | 
		
			| 13.08. |  | Kowal / Zelen - Ramir / Reyes | QF | 7-5, 3-6, 10-6 | 1.65 | 2.11 | 
		
			| 12.08. |  | Kowal / Zelen - Cerma / Junai | R16 | 7-5, 6-3 | 1.83 | 1.83 | 
		
			| Liberec challenger | Round | Result | H | A | 
		
			| 05.08. |  | Albot / Pavla - Kowal / Zelen | R16 | 2-6, 6-2, 10-5 | 1.99 | 1.75 | 
		
			| Futures 2015 | Round | Result | H | A | 
		
			| 01.08. |  | Horan / Zelen - Arvid / Borso | F | 6-4, 1-6, 15-13 | 1.29 | 3.30 | 
		
			| 31.07. |  | Horan / Zelen - Kello / Staub | SF | 3-6, 6-3, 10-6 |  |  | 
		
			| 29.07. |  | Horan / Zelen - Blask / Fabia | QF | 6-3, 6-4 |  |  | 
		
			| 28.07. |  | Horan / Zelen - Simca / Sproc | R16 | 6-3, 6-3 |  |  | 
		
			| Umag | Round | Result | H | A | 
		
			| 22.07. |  | Fyrst / Gonza - Kowal / Zelen | R16 | 63-7, 6-4, 12-10 | 1.44 | 2.59 | 
		
			| Davis Cup | Round | Result | H | A | 
		
			| 18.07. |  | Marti / Zelen - Merge / Tecau |  | 7-5, 6-3, 6-3 | 4.05 | 1.21 | 
		
			| Braunschweig challenger | Round | Result | H | A | 
		
			| 08.07. |  | Knowl / Oswal - Kowal / Zelen | R16 | 6-3, 65-7, 11-9 | 1.56 | 2.28 | 
		
			| Wimbledon | Round | Result | H | A | 
		
			| 30.06. |  | Grano / Lopez - Kowal / Zelen | 1R | 3-6, 4-6, 7-66, 6-4, 15-13 | 1.26 | 3.60 | 
		
			| 24.06. |  | Kowal / Zelen - Krets / Satsc | Q-QF | 6-4, 6-4 | 1.73 | 2.00 | 
		
			| 23.06. |  | Kowal / Zelen - Klein / Rice | Q-R16 | 7-5, 7-67 | 1.60 | 2.19 | 
		
			| Poprad challenger | Round | Result | H | A | 
		
			| 17.06. |  | Koval / Mertl - Kowal / Zelen | R16 | 4-6, 6-3, 10-7 | 3.52 | 1.25 | 
		
			| Prague challenger | Round | Result | H | A | 
		
			| 12.06. |  | Kowal / Zelen - Mayti / Reyes | F | 6-2, 7-65 | 1.65 | 2.10 | 
		
			| 11.06. |  | Kowal / Zelen - Bury / Ghedi | SF | 7-5, 6-4 | 1.55 | 2.30 | 
		
			| 10.06. |  | Kowal / Zelen - Marti / Podli | QF | 6-4, 6-4 |  |  | 
		
			| 09.06. |  | Kowal / Zelen - Fucso / Nedov | R16 | 6-3, 6-2 |  |  | 
		
			| Prostejov challenger | Round | Result | H | A | 
		
			| 05.06. |  | Knowl / Oswal - Kowal / Zelen | F | 4-6, 6-3, 11-9 | 1.65 | 2.09 | 
		
			| 04.06. |  | Kowal / Zelen - Monro / Sitak | SF | 4-6, 7-64, 10-7 | 2.23 | 1.58 | 
		
			| 03.06. |  | Kowal / Zelen - Ghem / Souza | QF | 6-1, 7-64 | 1.50 | 2.36 | 
		
			| 01.06. |  | Kowal / Zelen - Karlo / Konec | R16 | 6-2, 7-64 | 1.16 | 4.42 | 
		
			| Vicenza challenger | Round | Result | H | A | 
		
			| 27.05. |  | Andre / Jarry - Kowal / Zelen | R16 | 6-4, 6-3 | 2.25 | 1.57 | 
		
			| Heilbronn challenger | Round | Result | H | A | 
		
			| 17.05. |  | Kowal / Zelen - Meffe / Puetz | F | 6-4, 6-3 | 1.67 | 2.06 | 
		
			| 15.05. |  | Kowal / Zelen - Motti / Novik | SF | 6-1, 6-4 | 1.61 | 2.18 | 
		
			| 13.05. |  | Kowal / Zelen - Zvere / Zvere | QF | 6-3, 5-7, 10-6 | 2.10 | 1.66 | 
		
			| 11.05. |  | Kowal / Zelen - Falle / Lange | R16 | 6-4, 6-4 | 1.37 | 2.82 | 
		
			| Estoril | Round | Result | H | A | 
		
			| 29.04. |  | Elias / Sousa - Kowal / Zelen | R16 | 7-65, 7-67 | 1.74 | 1.97 | 
		
			| Vercelli challenger | Round | Result | H | A | 
		
			| 22.04. |  | Koolh / Midde - Kowal / Zelen | QF | 6-3, 7-5 | 2.09 | 1.66 | 
		
			| 20.04. |  | Kowal / Zelen - Cecch / Rondo | R16 | 6-3, 7-65 | 1.32 | 3.17 | 
		
			| Napoli 4 challenger | Round | Result | H | A | 
		
			| 09.04. |  | Bozol / Kraji - Kowal / Zelen | QF | 65-7, 6-4, 13-11 | 2.09 | 1.64 | 
		
			| 07.04. |  | Kowal / Zelen - Mager / Quinz | R16 | 6-3, 7-5 | 1.27 | 3.43 | 
		
			| Raanana challenger | Round | Result | H | A | 
		
			| 02.04. |  | Junai / Shama - Kowal / Zelen | SF | 7-66, 6-3 |  |  | 
		
			| 01.04. |  | Kowal / Zelen - Flemi / Marra | QF | 6-2, 7-66 |  |  | 
		
			| 31.03. |  | Kowal / Zelen - Botze / Patae | R16 | 7-5, 6-1 | 1.09 | 6.21 | 
		
			| Kazan challenger | Round | Result | H | A | 
		
			| 21.03. |  | Elgin / Zelen - Arnab / Viola | F | 6-3, 6-3 | 1.57 | 2.23 | 
		
			| 20.03. |  | Elgin / Zelen - Karat / Matsu | SF | 6-4, 6-2 | 1.43 | 2.60 | 
		
			| 18.03. |  | Elgin / Zelen - Micho / Millo | QF | 6-1, 4-6, 10-7 | 1.61 | 2.17 | 
		
			| 17.03. |  | Elgin / Zelen - Basic / Brkic | R16 | 6-3, 6-2 | 1.55 | 2.28 | 
		
			| Davis Cup | Round | Result | H | A | 
		
			| 07.03. |  | Kliza / Zelen - Kocev / Zemlj |  | 6-3, 6-4, 6-4 |  |  | 
		
			| Cherbourg challenger | Round | Result | H | A | 
		
			| 25.02. |  | Junai / Shama - Jebav / Zelen | R16 | 1-6, 7-5, 10-3 | 1.50 | 2.38 | 
		
			| Wroclaw challenger | Round | Result | H | A | 
		
			| 17.02. |  | Petzs / Puetz - Jebav / Zelen | R16 | 6-4, 63-7, 10-6 |  |  | 
		
			| Bergamo challenger | Round | Result | H | A | 
		
			| 10.02. |  | Gong / Peng - Jebav / Zelen | R16 | 7-65, 3-6, 17-15 | 1.64 | 2.10 | 
		
			| Glasgow challenger | Round | Result | H | A | 
		
			| 03.02. |  | Koniu / Kowal - Marti / Zelen | R16 | 6-4, 6-2 | 1.55 | 2.25 |