Stadium: Court 1 Round: 27 Ground: Clay
| ITF M25 Frankfurt am Main | 2021/08/12 11:10 | Taiyo Yamanaka v Mariano Kestelboim | 2-6,2-6 |
| ITF M25 Frankfurt am Main | 2021/08/10 13:15 | Mariano Kestelboim v Valentin Royer | 6-4,7-6 |
| ITF M25 Wetzlar | 2021/08/04 08:00 | Mariano Kestelboim v Mats Rosenkranz | 5-7,2-6 |
| ITF M25 Gandia | 2021/07/24 15:00 | Antoine Escoffier v Mariano Kestelboim | 5-7,6-4,6-2 |
| ITF M25 Gandia | 2021/07/23 08:00 | Facundo Juarez v Mariano Kestelboim | 4-6,6-4,2-6 |
| ITF M25 Gandia | 2021/07/21 07:30 | Imanol L Morillo v Mariano Kestelboim | 7-5,3-6,4-6 |
| ITF M15 Poprad | 2021/07/06 09:35 | Mariano Kestelboim v Marco Miceli | 6-1,3-6,2-6 |
| ITF M15 Antalya | 2021/07/02 06:20 | Francisco Comesana v Mariano Kestelboim | 6-2,6-1 |
| ITF M25 Frankfurt am Main | 2021/08/12 11:50 | Arnaud Bovy v Yshai Oliel | 3-6,4-6 |
| ITF M25 Frankfurt am Main | 2021/08/11 10:40 | Milos Karol v Yshai Oliel | 4-6,2-6 |
| Challenger Nur-Sultan | 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 |
| Challenger Nur-Sultan | 2021/07/12 06:30 | Andrey Kuznetsov v Yshai Oliel | 7-5,6-4 |
| Challenger Nur-Sultan | 2021/07/11 06:35 | Sanjar Fayziev 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 |