Stadium: Court 7 Round: 14 Ground: Hardcourt outdoor
| Challenger Yokohama | 2023/11/19 07:55 | Nathan Ponwith v Colin Sinclair | 3-6,6-7 |
| Challenger Champaign | 2023/11/12 19:35 | Nathan Ponwith v Murphy Cassone | 5-7,3-6 |
| Challenger Knoxville | 2023/11/05 19:25 | Alex Rybakov v Nathan Ponwith | 6-4,6-4 |
| ITF M25 Harlingen | 2023/10/25 13:55 | Nathan Ponwith v Marcus McDaniel | 5-7,4-6 |
| ITF M15 Las Vegas | 2023/10/18 16:55 | Nathan Ponwith v Sebastian Dominko | 3-6,6-7 |
| Challenger Fairfield | 2023/10/08 20:05 | Edward Winter v Nathan Ponwith | 6-2,6-2 |
| Challenger Tiburon | 2023/10/01 21:25 | Evan Zhu v Nathan Ponwith | 4-6,6-2,7-6 |
| Challenger Charleston | 2023/09/24 19:50 | Pedro Rodenas v Nathan Ponwith | 6-7,6-1,7-6 |
| ITF M25 Mumbai | 2023/11/21 06:20 | Kazuma Kawachi v Siddhant Banthia | 6-3,6-7,1-6 |
| UTR Pro Noda | 2023/10/21 00:00 | Sora Fukuda v Kazuma Kawachi | 6-1,5-3 |
| UTR Pro Noda | 2023/10/20 00:00 | Kazuma Kawachi v Natsuki Yamamoto | 6-4,6-1 |
| UTR Pro Noda | 2023/10/19 00:00 | Kazuma Kawachi v Yuto Okuchi | 6-4,6-7,6-0 |
| UTR Pro Noda | 2023/10/18 00:00 | Sota Tani v Kazuma Kawachi | 2-6,2-6 |
| UTR Pro Noda | 2023/10/17 01:30 | Chaitanya Irkar v Kazuma Kawachi | 4-6,4-6 |
| ITF M25 Takasaki | 2023/09/20 06:45 | Kazuma Kawachi v Hikaru Shiraishi | 3-6,3-6 |
| ITF M25 Sapporo | 2023/09/15 01:00 | Kazuma Kawachi v Hayato Matsuoka | 3-6,6-0,4-6 |