stadio: Court 3 Round: 27 Ground: Hardcourt outdoor
| ITF Turchia F35 | 2017/09/21 07:30 | Renta Tokuda v Rimpei Kawakami | 6-2,6-1 |
| ITF M25 Kashiwa | 2023/04/06 01:30 | Rimpei Kawakami v Yuttana Charoenphon | 7-6,6-2 |
| 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 M25 Kashiwa | 2023/04/06 03:00 | Yuki Mochizuki v Renta Tokuda | 1-6,1-6 |
| ITF M25 Kashiwa | 2023/04/03 01:00 | Renta Tokuda v Taiyo Yamanaka | 6-0,7-5 |
| ITF M25 Tsukuba | 2023/04/01 01:00 | Yu Hsiou Hsu v Renta Tokuda | 6-3,6-4 |
| ITF M25 Tsukuba | 2023/03/31 01:00 | Renta Tokuda v Yuki Mochizuki | 6-2,6-4 |
| ITF M25 Tsukuba | 2023/03/30 01:00 | Renta Tokuda v Naoki Tajima | 6-0,6-4 |
| ITF M15 Monastir | 2023/03/14 08:25 | Renta Tokuda v Simone Roncalli | 4-6,3-6 |
| ITF M15 Monastir | 2023/03/09 10:30 | Renta Tokuda v Tao Mu | 3-6,3-6 |
| ITF M15 Monastir | 2023/03/08 10:00 | Zoran Ludoski v Renta Tokuda | 0-6,2-6 |