Stadium: Court 6 Round: 54 Ground: Synthetic outdoor
| ITF Guam F1 | 2018/06/18 00:00 | Ken Onoda v Sho Katayama | 3-6,2-6 |
| ITF Singapore F3 | 2018/05/27 03:00 | Ken Onoda v Congsup Congcar | 4-6,4-6 |
| ITF Singapore F3 | 2018/05/26 03:00 | Ken Onoda v Kenneth Chua | 6-2,6-0 |
| ITF Singapore F2 | 2018/05/20 03:00 | Kazuki Nishiwaki v Ken Onoda | 6-1,6-2 |
| ITF Singapore F2 | 2018/05/19 02:00 | Jonathan-kyle Tan v Ken Onoda | 6-7,2-6 |
| ITF Singapore F1 | 2018/05/14 02:00 | Mousheg Hovhannisyan v Ken Onoda | 6-0,6-1 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Masayoshi Ono v Ken Onoda | 6-2,6-4 |
| ITF Japan F5 | 2018/04/01 00:30 | Ken Onoda v Masaki Sasai | 3-6,1-6 |
| ITF M15 Karuizawa | 2019/05/30 01:00 | Kento Takeuchi v Takuya Kumasaka | 5-7,6-2,6-4 |
| ITF M15 Karuizawa | 2019/05/28 02:30 | Sota Fujii v Takuya Kumasaka | 4-6,4-6 |
| ITF M15 Tsukuba | 2019/03/25 01:00 | Takuya Kumasaka v Tomohiro Masabayashi | 3-6,4-6 |
| ITF M15 Kofu | 2019/03/21 02:00 | Takuya Kumasaka v Issei Okamura | 1-6,2-6 |
| ITF M15 Kofu | 2019/03/20 03:25 | Pol Wattanakul v Takuya Kumasaka | 6-3,1-6,3-6 |
| ITF M15 Nishi-Tama | 2019/03/05 07:00 | Takuya Kumasaka v Taisei Ichikawa | 1-6,5-7 |
| ITF Thailand F9 | 2018/11/11 06:00 | Wei-De Lin v Takuya Kumasaka | 6-4,2-6,7-6 |
| ITF Thailand F9 | 2018/11/10 05:00 | Noppadol Noikor v Takuya Kumasaka | 1-6,1-6 |