Stadium: MTA 21 Round: 62 Ground: Clay
| ITF M15 Monastir | 2021/04/05 08:00 | Colin Sinclair v Tibo Colson | 2-6,6-4,8-10 |
| ITF M15 Monastir | 2021/04/04 09:00 | Colin Sinclair v Leyton Rivera | 6-2,6-7,10-3 |
| ITF M15 Monastir | 2021/03/29 10:30 | Colin Sinclair v Luca Castagnola | 4-6,6-3,6-10 |
| ITF M15 Monastir | 2021/03/27 08:30 | Lucas Catarina v Colin Sinclair | 2-6,7-6,6-4 |
| ITF M15 Monastir | 2021/03/26 08:30 | Christian Langmo v Colin Sinclair | 6-4,3-6,2-6 |
| ITF M15 Monastir | 2021/03/25 08:30 | Colin Sinclair v Laurent Lokoli | 6-3,6-2 |
| ITF M15 Monastir | 2021/03/24 10:55 | Colin Sinclair v Fausto Tabacco | 6-1,6-0 |
| ITF M15 Monastir | 2021/03/18 08:25 | Colin Sinclair v Alexander Kotzen | 5-7,5-7 |
| ITF M15 Antalya | 2021/02/28 07:00 | Umut Akkoyun v Batuhan Saban | 6-0,6-0 |