Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Tsukuba | 2023/03/29 02:30 | Rimpei Kawakami v Sora Fukuda | 3-6,6-4,6-4 |
| Challenger Las Franquesas del Valles | 2023/03/21 12:30 | Rimpei Kawakami v Nicholas David Ionel | 6-2,3-6,3-6 |
| Challenger Las Franquesas del Valles | 2023/03/20 13:30 | Fajing Sun v Rimpei Kawakami | 6-2,6-7,5-7 |
| Challenger Las Franquesas del Valles | 2023/03/20 09:00 | Jordi Garcia Mestre v Rimpei Kawakami | 1-6,1-6 |
| Challenger Szekesfehervar | 2023/03/12 10:35 | Michael Vrbensky v Rimpei Kawakami | 6-3,6-1 |
| ITF M15 Antalya | 2023/03/08 11:30 | Marcel Zielinski v Rimpei Kawakami | 6-3,1-6,6-4 |
| ITF M15 Antalya | 2023/03/07 07:00 | Rimpei Kawakami v Matthias Ujvary | 6-2,6-4 |
| ITF M15 Antalya | 2023/03/06 12:30 | Rimpei Kawakami v Oliver Varga-Toth | 6-0,6-0 |
| ITF M25 Tsukuba | 2023/03/28 07:55 | Tatsuma Ito v Keisuke Saitoh | 4-6,7-5,6-2 |
| ITF M25 Canberra | 2023/03/23 05:30 | Hans C B Gonzalez v Tatsuma Ito | 2-6,1-6 |
| ITF M25 Canberra | 2023/03/22 01:35 | Ethan Cook v Tatsuma Ito | 4-6,6-7 |
| ITF M25 Canberra | 2023/03/19 02:00 | Tatsuma Ito v Marc Polmans | 0-6,6-4,4-6 |
| ITF M25 Canberra | 2023/03/18 01:30 | Yuki Mochizuki v Tatsuma Ito | 3-6,7-6,3-6 |
| ITF M25 Canberra | 2023/03/16 23:00 | Colin Sinclair v Tatsuma Ito | 4-6,4-6 |
| ITF M25 Canberra | 2023/03/16 01:05 | Tatsuma Ito v Matthew Romios | 6-3,1-6,6-3 |
| ITF M25 Canberra | 2023/03/14 03:10 | Thomas Braithwaite v Tatsuma Ito | 6-4,4-6,6-7 |