Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tulsa | 2023/06/20 16:00 | Adam Neff v Colin Sinclair | 4-6,7-5,7-5 |
| Challenger Palmas del Mar | 2023/06/14 15:00 | Liam Draxl v Colin Sinclair | 7-6,6-3 |
| Challenger Palmas del Mar | 2023/06/13 20:00 | Colin Sinclair v Alexander Bravo | 6-2,6-0 |
| Challenger Palmas del Mar | 2023/06/12 15:00 | Kaito Uesugi v Colin Sinclair | 1-6,6-7 |
| Challenger Palmas del Mar | 2023/06/11 18:40 | Henrik Wiersholm v Colin Sinclair | 2-6,1-6 |
| ITF M15 Rancho Santa Fe | 2023/06/04 20:05 | Colin Sinclair v Jaimee Floyd Angele | 6-3,6-2 |
| ITF M15 Rancho Santa Fe | 2023/06/03 16:55 | Noah Schachter v Colin Sinclair | 3-6,5-7 |
| ITF M15 Rancho Santa Fe | 2023/06/02 20:00 | Colin Sinclair v Juan Carlos Aguilar | 6-3,6-0 |
| Challenger Blois | 2023/06/18 08:30 | Mathys Erhard v Mohamed Safwat | 3-6,3-6 |
| ITF M25 Grasse | 2023/06/16 14:30 | Mathys Erhard v Titouan Droguet | 1-6,3-6 |
| ITF M25 Grasse | 2023/06/15 14:00 | Mathys Erhard v Mikalai Haliak | 6-1,7-5 |
| ITF M25 Grasse | 2023/06/13 11:35 | Mathys Erhard v Joris Moret | 6-1,7-6 |
| ITF M25 Carnac | 2023/06/01 12:20 | Mathys Erhard v Clement Tabur | 1-6,6-7 |
| ITF M25 Carnac | 2023/05/31 13:45 | Mathys Erhard v Lucas Bouquet | 6-4,6-2 |
| ITF M25 Carnac | 2023/05/30 16:30 | Mathys Erhard v Tristan Lamasine | 6-3,6-3 |
| French Open | 2023/05/23 08:00 | Mathys Erhard v Flavio Cobolli | 4-6,6-3,4-6 |