Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/07/19 09:00 | Nikolay Sysoev v Joshua Sheehy | 2-6,1-6 |
| ITF M15 Monastir | 2021/07/18 09:00 | Fermin Calvo Barcelo v Nikolay Sysoev | 3-6,6-4,6-10 |
| ITF M15 Monastir | 2021/07/11 09:00 | Evgeny Philippov v Nikolay Sysoev | 6-2,6-1 |
| ITF M15 Monastir | 2021/07/05 09:00 | Lorenzo Rottoli v Nikolay Sysoev | 6-1,6-4 |
| ITF M15 Antalya | 2021/06/28 10:50 | Vladimir Korolev v Nikolay Sysoev | 6-1,6-0 |
| ITF M15 Antalya | 2021/06/27 06:30 | Nikolay Sysoev v Jason Janis | 6-3,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Fletcher Scott v Nikolay Sysoev | 6-1,7-5 |
| ITF M15 Antalya | 2021/06/14 07:30 | Nikolay Sysoev v Daniel Antonio Nunez | 2-6,3-6 |
| ITF M15 Monastir | 2021/07/19 13:00 | Maxence Beauge v Austin Ansari | 6-1,6-2 |
| ITF M15 Monastir | 2021/07/19 08:00 | Filiberto Fumagalli v Austin Ansari | 6-7,2-6 |
| ITF M15 Heraklion | 2021/06/07 07:30 | Austin Ansari v William Griffith | 1-6,1-6 |
| ITF M15 Heraklion | 2021/06/06 09:00 | Austin Ansari v Enzo Frances Tessari | 6-0,6-2 |
| ITF M15 Heraklion | 2021/06/01 06:30 | Austin Ansari v William Griffith | 1-6,0-6 |
| ITF M15 Heraklion | 2021/05/31 09:00 | Austin Ansari v Ammar Elamin | 4-6,6-4,10-5 |
| ITF M15 Heraklion | 2021/05/30 15:00 | Gianmarco Ferrari v Austin Ansari | 6-3,4-6,8-10 |
| ITF M15 Heraklion | 2021/05/23 08:00 | Mattia Bellucci v Austin Ansari | 6-4,7-5 |