Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/04 08:00 | Alessandro Pecci v Constantin Bittoun Kouzmine | 5-7,6-7 |
| ITF - M15 Monastir | 2021/05/03 13:00 | Francois Musitelli v Constantin Bittoun Kouzmine | 1-6,7-5,7-10 |
| ITF - M15 Monastir | 2021/04/28 11:25 | Constantin Bittoun Kouzmine v Arthur Bouquier | 2-6,3-6 |
| ITF - M15 Monastir | 2021/04/26 12:30 | Lorenzo Bresciani v Constantin Bittoun Kouzmine | 5-7,3-6 |
| ITF - M15 Monastir | 2021/04/26 08:00 | Daiki Yoshimura v Constantin Bittoun Kouzmine | 3-6,3-6 |
| ITF - M15 Monastir | 2021/04/25 10:30 | Pereira, Miguel Fernando v Constantin Bittoun Kouzmine | 2-6,3-6 |
| ITF M15 St Petersburg | 2021/04/15 09:45 | Constantin Bittoun Kouzmine v Alexey Zakharov | 4-6,4-6 |
| ITF M15 St Petersburg | 2021/04/14 10:40 | Ivanov, Vladimir v Constantin Bittoun Kouzmine | 1-6,7-6,2-6 |
| ITF - M15 Monastir | 2021/04/25 11:30 | Davies, George v Sibille, Imran | 7-5,7-5 |
| ITF - M15 Monastir | 2021/04/19 12:00 | Ribeiro Marcondes, Igor v Sibille, Imran | 6-0,6-2 |
| ITF - M15 Monastir | 2021/04/18 10:00 | Sibille, Imran v Knoess, Vincent | 6-1,6-2 |
| ITF - M15 Monastir | 2021/04/11 11:00 | Louis Tessa v Sibille, Imran | 6-1,6-1 |
| ITF - M15 Monastir | 2021/04/04 11:30 | Sibille, Imran v Ruzgas, Marius | 3-6,2-6 |
| ITF - M15 Monastir | 2020/10/13 10:55 | Sibille, Imran v Kristjan Tamm | 2-6,1-6 |
| ITF - M15 Monastir | 2020/10/04 08:00 | Sibille, Imran v Ajavon, Liova | 4-6,5-7 |
| ITF - M15 Monastir | 2020/09/28 08:00 | Sibille, Imran v Petros Tsitsipas | 4-6,3-6 |