Stadium: Court 5 Round: 26 Ground: Clay
| ITF Japan F8 | 2018/06/13 01:00 | Sora Fukuda v Kawakami, Rimpei | 6-1,3-6,3-6 |
| ITF Japan F7 | 2018/06/04 01:00 | Kawakami, Rimpei v Kawahashi, Yuta | 4-6,3-6 |
| ITF China F5 | 2018/05/10 03:00 | Rigele Te v Kawakami, Rimpei | 6-4,6-2 |
| ITF China F5 | 2018/05/09 03:20 | Kawakami, Rimpei v Wang, Chuhan | 6-1,0-6,6-4 |
| ITF China F5 Qual | 2018/05/07 07:15 | Kawakami, Rimpei v Hanyi Liu | 6-2,6-0 |
| ITF China F5 Qual | 2018/05/07 03:50 | Kawakami, Rimpei v Jordan Chiu | 6-0,6-4 |
| ITF China F5 Qual | 2018/05/05 07:45 | Kawakami, Rimpei v Bakhodur, Fariduni | 6-3,6-1 |
| ITF China F4 | 2018/05/01 02:40 | Kawakami, Rimpei v Sadler, Olly | 4-6,4-6 |
| ITF Japan F8 | 2018/06/12 01:00 | Ono, Masayoshi v Kazuma Kawachi | 4-6,0-6 |
| ITF Japan F7 | 2018/06/05 01:00 | Yuki Mochizuki v Kazuma Kawachi | 6-1,6-2 |
| ITF China F7 | 2018/05/29 03:20 | Aoran Wang v Kazuma Kawachi | 6-2,6-1 |
| ITF Nigeria F3 | 2018/05/01 09:00 | Kazuma Kawachi v Karim-Mohamed Maamoun | 4-6,2-6 |
| ITF Nigeria F3 Qual | 2018/04/29 09:00 | Kazuma Kawachi v Raman, Rishabdev | 6-1,7-5 |
| ITF Nigeria F2 Qual | 2018/04/22 10:25 | Kazuma Kawachi v Danes, Alexandru | 6-3,3-6,1-6 |
| ITF Nigeria F2 Qual | 2018/04/21 09:00 | Kazuma Kawachi v Goldenberg, Dustin | 1-6,6-1,6-0 |
| Nigeria F1, Singles | 2018/04/16 10:00 | Kazuma Kawachi v Neuchrist, Maximilian | 4-6,4-6 |