Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Changwon | 2023/06/15 00:50 | Rimpei Kawakami v Uisung Park | 6-3,6-2 |
| ITF M25 Changwon | 2023/06/14 02:50 | Rimpei Kawakami v Ji Hoon Son | 6-7,6-4,7-5 |
| ITF M25 Mataro | 2023/05/24 11:05 | Gianmarco Ferrari v Rimpei Kawakami | 4-6,6-2,6-3 |
| ITF M25 Gurb | 2023/05/17 08:00 | Rimpei Kawakami v Noah Lopez | 6-4,6-7,4-6 |
| ITF M25 Valldoreix | 2023/05/11 11:20 | Rimpei Kawakami v Nikolas Sanchez Izquierdo | 2-6,4-6 |
| ITF M25 Valldoreix | 2023/05/10 12:05 | Rimpei Kawakami v Diego A B Sanchez | 6-4,5-7,7-5 |
| ITF M25 Kashiwa | 2023/04/07 00:50 | Rimpei Kawakami v Renta Tokuda | 3-6,3-6 |
| ITF M25 Kashiwa | 2023/04/06 01:30 | Rimpei Kawakami v Yuttana Charoenphon | 7-6,6-2 |
| ITF M15 Karuizawa | 2023/06/03 03:30 | Yuta Kawahashi v Hikaru Shiraishi | 7-5,1-6,10-7 |
| ITF M15 Karuizawa | 2023/06/01 01:45 | Ryotaro Matsumura v Hikaru Shiraishi | 4-6,2-6 |
| ITF M15 Karuizawa | 2023/05/31 01:00 | Toru Horie v Hikaru Shiraishi | 4-6,6-4,4-6 |
| ITF M15 Monastir | 2023/05/17 12:35 | Robin Bertrand v Hikaru Shiraishi | 7-5,2-6,6-4 |
| ITF M15 Monastir | 2023/05/16 08:00 | Hikaru Shiraishi v Antoni Fabre | 7-6,6-3 |
| ITF M15 Monastir | 2023/05/15 12:30 | Hikaru Shiraishi v Hillel Rousseau | 6-4,6-3 |
| ITF M15 Monastir | 2023/05/14 08:30 | Hikaru Shiraishi v Mehdi Benchakroun | 6-1,6-3 |
| ITF M15 Monastir | 2023/05/10 10:40 | Hikaru Shiraishi v Eliakim Coulibaly | 6-0,6-7,4-6 |