Stadium: Covered court 13 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Wuhan | 2019/05/06 07:50 | Kousuke Ogura v Rimpei Kawakami | 6-4,6-4 |
| ITF M25 Matsuyama | 2019/04/09 01:00 | Rimpei Kawakami v Rinky Hijikata | 4-6,2-6 |
| ITF M15 Mornington | 2019/03/26 05:20 | Rimpei Kawakami v Thomas Bosancic | 4-6,6-7 |
| ITF M15 Mornington | 2019/03/20 23:00 | Rimpei Kawakami v Thomas Fancutt | 3-6,4-6 |
| ITF M15 Mornington | 2019/03/20 02:05 | Rimpei Kawakami v Alexander Klintcharov | 6-4,6-2 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Rimpei Kawakami v Yuta Shimizu | 6-7,6-2,1-6 |
| ITF M15 Nishi-Tokyo | 2019/03/13 05:25 | Rimpei Kawakami v Issei Okamura | 6-2,6-1 |
| ITF M15 Nishi-Tokyo | 2019/03/12 02:35 | Rimpei Kawakami v Daisuke Sumizawa | 6-2,6-1 |
| ITF M25 Luan | 2019/05/14 03:25 | Natthasith Kunsuwan v Guan Kai Wang | 6-0,6-0 |
| ITF M25 Luan | 2019/05/13 03:10 | Natthasith Kunsuwan v Zijiang Yang | 6-2,6-2 |
| ITF M25 Wuhan | 2019/05/06 07:05 | Karunuday Singh v Natthasith Kunsuwan | 6-4,6-2 |
| ITF M15 Wuhan | 2019/04/30 03:20 | Natthasith Kunsuwan v Pak Long Yeung | 5-7,2-6 |
| ITF M15 Wuhan | 2019/04/29 07:05 | Natthasith Kunsuwan v Yaojie Zeng | 7-6,6-3 |
| ITF M15 Nishi-Tama | 2019/03/05 01:00 | Aoran Wang v Natthasith Kunsuwan | 6-4,6-4 |
| Challenger Bangkok | 2019/02/11 06:25 | Natthasith Kunsuwan v David Perez Sanz | 2-6,4-6 |
| ITF M25 Hong Kong | 2019/01/01 03:35 | Kuan-Yi Lee v Natthasith Kunsuwan | 6-2,6-3 |