Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Albuquerque | 2023/09/26 23:00 | Colin Markes v Aram Noroozian | 7-5,7-6 |
| Challenger - Columbus | 2023/09/17 22:15 | Aidan Mayo v Colin Markes | 6-2,6-2 |
| Challenger - Cary | 2023/09/10 17:00 | Colin Markes v Alex Rybakov | 3-6,1-6 |
| UTR Pro - California | 2023/08/24 17:00 | Colin Markes v Alexey Nesterov | 0-6,7-6,5-6 |
| UTR Pro - California | 2023/08/23 19:58 | Colin Markes v Juan Carlos Aguilar | 6-4,6-4 |
| UTR Pro - California | 2023/08/22 17:00 | Colin Markes v Nedim Suko | 6-4,6-2 |
| UTR Pro - California | 2023/08/21 20:48 | Colin Markes v Joseph Corse | 6-3,6-3 |
| UTR Pro - California | 2023/08/21 20:00 | Colin Markes v Emin Torlic | 0-0 |
| ITF - M15 Albuquerque | 2023/09/27 21:30 | Rei Sakamoto v Adam Neff | 4-6,2-6 |
| ITF M25 Edwardsville | 2023/07/26 16:30 | Adam Neff v Kareem Allaf | 6-3,3-6,3-6 |
| ITF - M25 Dallas | 2023/07/11 18:50 | Nicholas Godsick v Adam Neff | 6-2,6-2 |
| ITF M25 - Tulsa | 2023/06/22 15:00 | Alejandro Moreno v Adam Neff | 6-4,6-7,2-6 |
| ITF M25 - Tulsa | 2023/06/20 16:00 | Adam Neff v Colin Sinclair | 4-6,7-5,7-5 |
| ITF M25 - Wichita | 2023/06/14 22:10 | Adam Neff v Nicaise Muamba | 4-6,7-5,3-6 |
| Challenger - Tyler | 2023/06/09 17:40 | Adam Neff v Peter Gojowczyk | 6-3,3-6,2-6 |
| Challenger - Tyler | 2023/06/08 16:00 | Christian Langmo v Adam Neff | 6-7,6-7 |