Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Las Vegas | 2023/10/18 20:25 | Alexander Cozbinov v Shunsuke Mitsui | 2-6,4-6 |
| ITF M15 Ithaca | 2023/10/04 14:00 | Shunsuke Mitsui v Perry Gregg | 3-6,6-7 |
| ITF M15 Champaign | 2023/09/16 15:00 | Liam Draxl v Shunsuke Mitsui | 6-2,6-2 |
| ITF M15 Champaign | 2023/09/15 15:00 | Shunsuke Mitsui v Jack Loutit | 7-6,6-2 |
| ITF M15 Champaign | 2023/09/14 15:00 | Shunsuke Mitsui v Adit Sinha | 6-4,3-6,7-5 |
| ITF M15 Champaign | 2023/09/13 19:35 | Shunsuke Mitsui v Karlis Ozolins | 6-4,6-2 |
| UTR Pro Knoxville | 2023/09/02 00:27 | Jose Garcia v Shunsuke Mitsui | 7-6,6-2 |
| UTR Pro Knoxville | 2023/08/31 18:00 | Shunsuke Mitsui v Tommy Czaplinski | 6-4,6-2 |
| ITF M15 Las Vegas | 2023/10/18 18:20 | Colin Markes v Dusan Rsovac | 6-1,6-0 |
| Challenger Fairfield | 2023/10/09 18:45 | Colin Markes v Alfredo Perez | 3-6,6-2,4-6 |
| Challenger Fairfield | 2023/10/08 21:50 | Clement Chidekh v Colin Markes | 4-6,2-6 |
| ITF M15 Albuquerque | 2023/09/29 18:05 | Colin Markes v Keegan Smith | 7-6,3-6,4-6 |
| ITF M15 Albuquerque | 2023/09/28 17:10 | Colin Markes v Adam Neff | 6-4,3-6,6-3 |
| 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 |