Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/11 08:30 | Mariano Kestelboim v Yunseong Chung | 7-6,1-6,2-6 |
| ITF - M15 Monastir | 2021/05/04 13:10 | Mariano Kestelboim v Alibek Kachmazov | 6-1,6-7,3-6 |
| ITF - M15 Monastir | 2021/04/29 11:20 | Mariano Kestelboim v Yuta Kawahashi | 1-6,1-6 |
| ITF - M15 Monastir | 2021/04/27 09:55 | Mariano Kestelboim v Ervin H Eminefendic | 6-3,6-0 |
| ITF - M15 Cordoba | 2021/04/10 14:30 | Gonzalo Lama v Mariano Kestelboim | 6-4,6-4 |
| ITF - M15 Cordoba | 2021/04/08 13:00 | Benjamin Dhoe v Mariano Kestelboim | 2-6,1-6 |
| ITF - M15 Cordoba | 2021/04/06 14:45 | Santiago De La Fuente v Mariano Kestelboim | 2-6,1-6 |
| ITF - M15 Villa Maria | 2021/04/02 13:55 | Mariano Kestelboim v Hernan Casanova | 6-1,4-6,2-6 |
| ITF - M15 Monastir | 2021/05/10 13:30 | Guy Orly Iradukunda v Mattia Frinzi | 6-4,4-6,4-10 |
| ITF - M15 Monastir | 2021/05/10 09:00 | Guy Orly Iradukunda v Fausto Tabacco | 3-6,6-2,12-10 |
| ITF - M15 Monastir | 2021/05/09 10:00 | Guy Orly Iradukunda v Daiki Yoshimura | 2-6,2-6 |
| ITF - M15 Monastir | 2021/04/21 12:35 | Guy Orly Iradukunda v Igor Marcondes | 6-4,2-6,3-6 |
| ITF - M15 Monastir | 2021/04/20 08:00 | Guy Orly Iradukunda v Berk Ilkel | 6-4,6-2 |
| ITF - M15 Monastir | 2021/04/19 12:00 | Guy Orly Iradukunda v Miguel Fernando Pereira | 7-6,7-5 |
| ITF - M15 Monastir | 2021/04/18 09:00 | Guy Orly Iradukunda v Thomas George Brun | 6-1,6-1 |
| ITF - M15 Monastir | 2021/04/14 10:15 | Guy Orly Iradukunda v Antoine Escoffier | 1-6,6-7 |