Stadium: Stadium 4 Round: 27 Ground: Hardcourt outdoor
| Challenger Indian Wells | 2018/02/28 19:25 | Henri Laaksonen v Martin Klizan | 3-6,5-7 |
| Challenger Indian Wells | 2018/02/26 21:20 | Sergiy Stakhovsky v Martin Klizan | 3-6,6-2,3-6 |
| ATP Rotterdam | 2018/02/12 11:50 | Martin Klizan v Feliciano Lopez | 3-6,6-7 |
| ATP Rotterdam Qual | 2018/02/11 11:35 | Andreas Seppi v Martin Klizan | 3-6,6-7 |
| ATP Rotterdam Qual | 2018/02/10 14:30 | Martin Klizan v Stefanos Tsitsipas | 2-6,7-6,7-6 |
| ATP Sofia | 2018/02/08 17:35 | Stan Wawrinka v Martin Klizan | 4-6,6-2,6-3 |
| ATP Sofia | 2018/02/06 11:20 | Martin Klizan v Alexander Donski | 7-5,6-1 |
| ATP Sofia Qual | 2018/02/05 11:20 | Martin Klizan v Salvatore Caruso | 1-6,6-4,6-3 |
| Challenger Indian Wells | 2018/02/28 18:00 | Peter Polansky v Stefan Kozlov | 6-2,6-4 |
| Challenger Indian Wells | 2018/02/27 20:05 | Peter Polansky v Evan King | 6-4,6-2 |
| ATP Delray Beach | 2018/02/20 19:15 | Peter Polansky v Jared Donaldson | 6-7,1-6 |
| ATP Delray Beach Qual | 2018/02/18 18:40 | Franko Skugor v Peter Polansky | 6-2,6-4 |
| ATP Delray Beach Qual | 2018/02/17 22:20 | Peter Polansky v Adrian Menendez-Maceiras | 6-2,6-3 |
| ATP New York Qual | 2018/02/11 21:25 | Peter Polansky v Stefano Travaglia | 7-5,4-6,4-6 |
| ATP Quito | 2018/02/07 17:00 | Alessandro Giannessi v Peter Polansky | 6-3,6-4 |
| Challenger Newport Beach | 2018/01/23 22:50 | Peter Polansky v Alexander Bublik | 6-3,3-6,0-6 |