Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Pescara | 2021/08/20 10:30 | Thirouin, Jean v Arthur Reymond | 2-6,1-6 |
| ITF M15 Pescara | 2021/08/19 09:00 | Thirouin, Jean v Del Federico, Andrea | 7-5,6-2 |
| ITF M15 Pescara | 2021/08/17 08:00 | Galoppini, Davide v Thirouin, Jean | 5-7,6-1,3-6 |
| ITF M25 Pitesti | 2021/08/03 13:30 | Moez Echargui v Thirouin, Jean | 6-3,6-2 |
| ITF M15 Castelo Branco | 2021/07/29 10:35 | Thirouin, Jean v Sho Shimabukuro | 0-6,1-6 |
| ITF M15 Castelo Branco | 2021/07/28 13:30 | Daniil Glinka v Thirouin, Jean | 5-7,7-5,4-6 |
| ITF M25 Idanha-A-Nova | 2021/07/21 13:10 | Thirouin, Jean v Daniel Little | 3-6,4-6 |
| ITF - M15 Doboj | 2021/07/16 08:00 | Thirouin, Jean v Dusan Obradovic | 6-7,4-6 |
| ITF M25 Ueberlingen | 2021/08/17 15:00 | Mariano Kestelboim v Harrison, Ryan | 3-6,6-4,2-6 |
| ITF M25 Frankfurt am Main | 2021/08/13 09:50 | Mariano Kestelboim v Yshai Oliel | 2-6,2-6 |
| 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 |