Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Santo Domingo | 2021/12/09 15:25 | Colin Sinclair v Peter Bertran | 2-6,2-6 |
| ITF M15 Santo Domingo | 2021/12/08 18:05 | Colin Sinclair v Sebastian Gima | 6-3,6-2 |
| ITF M15 Guatemala | 2021/11/28 15:30 | Marco Brugnerotto v Colin Sinclair | 1-6,7-5,4-6 |
| ITF M15 Guatemala | 2021/11/27 17:35 | Colin Sinclair v Taha Baadi | 7-6,7-6 |
| ITF M15 Guatemala | 2021/11/26 15:30 | Alejandro Mendoza v Colin Sinclair | 3-6,7-6,2-6 |
| ITF M15 Guatemala | 2021/11/25 15:30 | Osgar O'Hoisin v Colin Sinclair | 2-6,3-6 |
| ITF M15 Guatemala | 2021/11/23 18:00 | Rafael Botran Neutze v Colin Sinclair | 3-6,1-6 |
| ITF M15 East Lansing | 2021/11/19 17:55 | Alex Knaff v Colin Sinclair | 7-6,5-7,6-2 |
| ITF M25 Monastir | 2022/01/19 11:25 | Jannik Maute v Cesar Bourgois | 2-6,0-6 |
| ITF M25 Monastir | 2022/01/17 09:10 | Jannik Maute v Charlelie Cosnet | 2-6,6-3,10-8 |
| ITF M15 Manacor | 2022/01/05 16:15 | Martin Krumich v Jannik Maute | 6-7,6-2,6-3 |
| ITF M15 Manacor | 2022/01/04 10:00 | Jannik Maute v Alen Moritz Hodzic | 6-3,6-2 |
| German Championship | 2021/12/08 13:00 | Jannik Maute v Kai Wehnelt | 2-6,4-6 |
| ITF M15 Heraklion | 2021/11/10 14:10 | Jannik Maute v Jonas Trinker | 1-6,7-6,6-2 |
| ITF M15 Heraklion | 2021/11/09 07:00 | Marius Ruzgas v Jannik Maute | 3-6,6-4,12-14 |
| ITF M15 Heraklion | 2021/11/08 09:00 | Jannik Maute v Tim Heger | 4-6,6-3,15-13 |