Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| UTR Pro California | 2023/08/08 17:00 | Colin Markes v Noah Zamora | 6-3,6-3 |
| UTR Pro California | 2023/08/07 17:00 | Colin Markes v Constantinos Djakouris | 0-6,6-3,3-6 |
| Challenger Lexington | 2023/07/31 17:10 | Aidan Mayo v Colin Markes | 6-2,7-5 |
| Challenger Lexington | 2023/07/30 20:00 | Blu Baker v Colin Markes | 4-6,5-7 |
| ITF M25 Edwardsville | 2023/07/28 00:00 | Aidan Mchugh v Colin Markes | 2-6,6-2,7-5 |
| ITF M25 Edwardsville | 2023/07/26 17:25 | Colin Markes v Alejandro Moreno | 7-6,6-3 |
| Challenger Granby | 2023/07/17 14:00 | Joshua Sheehy v Colin Markes | 6-2,6-7,7-5 |
| Challenger Granby | 2023/07/16 15:00 | Colin Markes v Ernesto Escobedo | 6-1,6-3 |
| ITF M15 Monastir | 2023/08/07 08:00 | Joris Moret v Dusan Rsovac | 7-6,6-1 |
| ITF M15 Monastir | 2023/07/30 07:30 | Dusan Rsovac v Richard Zusman | 2-6,4-6 |
| ITF M15 Monastir | 2023/07/24 17:00 | Alberto Bronzetti v Dusan Rsovac | 6-2,7-5 |
| ITF M15 Monastir | 2023/07/23 15:00 | Dusan Rsovac v Evangelos Kypriotis | 7-5,7-6 |
| ITF M15 Monastir | 2023/07/16 08:00 | Dusan Rsovac v S Mert Ozdemir | 4-6,3-6 |
| ITF M15 Monastir | 2023/07/10 08:30 | Tuncay Duran v Dusan Rsovac | 6-1,6-4 |
| ITF M15 Monastir | 2023/07/09 08:30 | Dusan Rsovac v Stefan Vujic | 6-3,6-4 |
| ITF M15 Monastir | 2023/07/03 13:00 | Geni Inoue v Dusan Rsovac | 6-4,6-3 |