Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF - M25 Kashiwa | 2023/04/05 02:40 | Rimpei Kawakami v Hiroyasu Ehara | 6-0,6-0 |
| ITF - M25 Tsukuba | 2023/03/30 02:45 | Rimpei Kawakami v Tatsuma Ito | 6-1,1-6,0-6 |
| 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 - M25 Kashiwa | 2023/04/04 03:55 | Ryuki Matsuda v Yuttana Charoenphon | 6-4,3-6,1-6 |
| ITF - M25 Kashiwa | 2023/04/03 05:00 | Yuttana Charoenphon v Tomohiro Masabayashi | 7-5,2-6,10-6 |
| ITF - M25 Kashiwa | 2023/04/02 02:30 | Yuttana Charoenphon v Shunsuke Nakagawa | 7-6,6-3 |
| ITF - M25 Tsukuba | 2023/03/27 00:30 | Yuttana Charoenphon v Ko Suzuki | 2-6,2-6 |
| Davis Cup | 2023/02/04 08:45 | Yuttana Charoenphon v Filip Cristian Jianu | 0-6,2-6 |
| Davis Cup | 2023/02/03 04:00 | Yuttana Charoenphon v Nicholas David Ionel | 7-5,3-6,6-1 |
| ITF M15 Jakarta | 2023/01/26 03:25 | Marat Sharipov v Yuttana Charoenphon | 6-1,4-6,6-2 |
| Challenger - Nonthaburi | 2023/01/16 06:35 | Yuttana Charoenphon v Michael Geerts | 3-6,1-6 |