Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 East Lansing | 2021/11/18 18:00 | Alexandre Rotsaert v Colin Sinclair | 5-7,6-4,2-6 |
| ITF M15 East Lansing | 2021/11/17 20:45 | Nico Mostardi v Colin Sinclair | 3-6,4-6 |
| ITF M15 Ithaca | 2021/11/04 16:45 | Colin Sinclair v Vasil Kirkov | 3-6,4-6 |
| ITF M15 Ithaca | 2021/11/03 17:55 | Michael Zheng v Colin Sinclair | 0-6,2-6 |
| ITF M15 Tallahassee | 2021/10/27 14:00 | Colin Sinclair v Ryan Shane | 6-3,3-6,6-7 |
| ITF M15 Ithaca | 2021/10/05 16:00 | Taha Baadi v Colin Sinclair | 7-6,7-5 |
| ITF M25 Budapest | 2021/09/28 10:45 | Pawel Juszczak v Colin Sinclair | 6-2,7-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 13:30 | Colin Sinclair v Guy Den Heijer | 2-6,3-5 |
| ITF M15 Antalya | 2020/03/11 07:00 | Rigele Te v Denis Klok | 3-6,1-6 |
| ITF M15 Antalya | 2020/03/10 07:30 | Rigele Te v Vladislav Ivanov | 6-2,6-4 |
| ITF M15 Antalya | 2020/03/09 08:00 | Rigele Te v Egill Sigurdsson | 6-1,6-1 |
| ITF M15 Antalya | 2020/03/08 08:00 | Rigele Te v Leonardo Catani | 2-1 |
| ITF M15 Antalya | 2020/03/03 09:30 | Rigele Te v Luciano Tacchi | 0-6,6-1,10-7 |
| ITF M15 Vigo | 2019/08/18 10:30 | Rigele Te v Oscar Jose Gutierrez | 6-7,6-7 |
| ITF M15 Vigo | 2019/08/17 09:00 | Pedro Vives Marcos v Rigele Te | 2-6,0-6 |
| ITF M15 Vigo | 2019/08/16 10:00 | Benjamin Winter Lopez v Rigele Te | 1-6,4-6 |