| Wimbledon | 06/28 12:55 | 23 | [119] Zdenek Kolar v Benjamin Bonzi [47] | 3-6,3-6,1-6 | |
| Wimbledon | 06/23 10:00 | 19 | [120] Zdenek Kolar v Andrea Vavassori [255] | 7-6,6-7,1-6,6-7 | |
| Wimbledon | 06/22 10:00 | 19 | [120] Zdenek Kolar v Mario Vilella Martinez [261] | Retired | |
| Wimbledon | 06/20 13:00 | 14 | Zdenek Kolar v Dudi Sela | 6-0,6-3 | |
| Challenger Blois | 06/14 09:00 | 25 | [111] Zdenek Kolar v Evgeny Karlovskiy [250] | 2-6,4-6 | |
| Challenger Bratislava | 06/07 11:50 | 25 | [117] Zdenek Kolar v Riccardo Bonadio [232] | 2-6,2-6 | |
| Challenger Prostejov | 05/31 12:45 | 25 | [134] Zdenek Kolar v Louis Wessels [324] | 3-6,6-3,2-6 | |
| French Open | 05/26 15:25 | 24 | [134] Zdenek Kolar v Stefanos Tsitsipas [4] | 3-6,6-7,7-6,6-7 | |
| French Open | 05/24 17:30 | 23 | [162] Lucas Pouille v Zdenek Kolar [134] | 3-6,6-4,5-7,4-6 | |
| French Open | 05/19 10:50 | 19 | [155] Franco Agamenone v Zdenek Kolar [136] | 3-6,4-6 | |
| French Open | 05/18 10:45 | 15 | [183] Altug Celikbilek v Zdenek Kolar [136] | 4-6,7-6,1-6 | |
| French Open | 05/16 08:00 | 14 | [184] Federico Gaio v Zdenek Kolar [136] | 1-6,6-7 |