Stadium: Court 4 Round: 25 Ground: Clay
| ITF M25 Kottingbrunn | 2021/07/21 08:00 | Francisco Comesana v Milos Karol | 7-6,7-6 |
| ITF M25 Kottingbrunn | 2021/07/20 07:55 | Pietro Mugelli v Milos Karol | 2-6,4-6 |
| ITF M25 Kottingbrunn | 2021/07/19 07:55 | Milos Karol v Kris Krawcewicz | 6-4,6-4 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Milos Karol v Stepan Mruzek | 6-3,6-4 |
| ITF M15 Poprad | 2021/07/10 10:40 | Milos Karol v Damien Wenger | 3-6,6-1,2-6 |
| ITF M15 Poprad | 2021/07/08 07:55 | Milos Karol v Pospisil, Jaroslav | 6-4,7-6 |
| ITF M15 Poprad | 2021/07/06 11:25 | Milos Karol v Martin Machala | 6-3,6-4 |
| ITF M25 Wroclaw | 2021/06/29 07:55 | Maciej Rajski v Milos Karol | 6-4,6-4 |
| Nur Sultan, Kazakhstan | 2021/07/19 04:00 | Yshai Oliel v Oleksii Krutykh | 6-3,3-6,2-6 |
| Challenger Nur-Sultan Qual | 2021/07/18 07:40 | Yshai Oliel v Kirill Kolganov | 6-2,6-0 |
| Nur Sultan, Kazakhstan | 2021/07/12 06:30 | Andrey Kuznetsov v Yshai Oliel | 7-5,6-4 |
| Nur Sultan, Kazakhstan | 2021/07/11 06:35 | Fayziev, Sanjar v Yshai Oliel | 1-6,7-6,1-6 |
| ITF M25 Nur-Sultan | 2021/07/09 08:30 | Evgeny Karlovskiy v Yshai Oliel | 6-2,6-4 |
| ITF M25 Nur-Sultan | 2021/07/08 07:35 | Edan Leshem v Yshai Oliel | 6-7,2-6 |
| ITF - M25 Santo Domingo | 2021/06/09 14:45 | Yshai Oliel v Lopez Villasenor, Gerardo | 6-7,6-1,3-6 |
| ITF - M25 Santo Domingo | 2021/06/03 16:45 | Smith, Roy v Yshai Oliel | 4-6,6-2,6-3 |