Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Jerusalem | 2021/05/12 07:00 | Yshai Oliel v Simon Freund | 6-0,7-5 |
| ITF M15 Ramat Hasharon | 2021/05/09 13:00 | Patael, Ben v Yshai Oliel | 6-4,6-4 |
| ITF M15 Ramat Hasharon | 2021/05/08 07:00 | Felix Corwin v Yshai Oliel | 1-6,4-6 |
| ITF M15 Ramat Hasharon | 2021/05/07 07:00 | Alexandar Lazarov v Yshai Oliel | 4-6,3-6 |
| ITF M15 Ramat Hasharon | 2021/05/06 10:45 | Mikula, Michal v Yshai Oliel | 6-4,1-6,4-6 |
| ITF - M15 Antalya | 2021/04/29 07:30 | Samuel Vincent Ruggeri v Yshai Oliel | 0-6,6-4,6-3 |
| ITF - M15 Antalya | 2021/04/28 09:55 | Dali Blanch v Yshai Oliel | 0-6,6-3,2-6 |
| ITF - M15 Antalya | 2021/04/22 08:30 | Yshai Oliel v Federico Arnaboldi | 3-6,4-6 |
| ITF M15 Jerusalem | 2021/05/12 09:35 | Keenan Mayo v Cozbinov, Alexander | 2-6,6-4,2-6 |
| ITF M15 Ramat Hasharon | 2021/05/07 08:50 | Edan Leshem v Cozbinov, Alexander | 6-2,3-6,6-3 |
| ITF M15 Ramat Hasharon | 2021/05/06 07:00 | Dominik Palan v Cozbinov, Alexander | 6-4,6-7,6-7 |
| ITF M15 Ramat Hasharon | 2021/05/04 07:00 | Roi Ginat v Cozbinov, Alexander | 1-6,3-6 |
| ITF M15 St Petersburg | 2021/04/14 07:00 | Yanki Erel v Cozbinov, Alexander | 7-6,7-6 |
| ITF M15 St Petersburg | 2021/04/10 08:00 | Cozbinov, Alexander v Nedelko, Ivan | 6-2,4-6,3-6 |
| ITF M15 St Petersburg | 2021/04/09 08:00 | Cozbinov, Alexander v Dubrivnyy, Artem | 6-4,6-7,6-3 |
| ITF M15 St Petersburg | 2021/04/08 09:00 | Tyurnev, Evgeny v Cozbinov, Alexander | 6-2,3-6,2-6 |