Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Nishi-Tama | 2019/03/05 07:00 | Takuya Kumasaka v Taisei Ichikawa | 1-6,5-7 |
| ITF M15 Monastir | 2021/08/10 07:30 | Taisei Ichikawa v Adil Kalyanpur | 6-7,6-1,12-10 |
| ITF M15 Monastir | 2021/08/09 07:30 | Taisei Ichikawa v Mateo Nicolas Martinez | 6-1,6-2 |
| ITF M15 Monastir | 2021/08/08 08:30 | Taisei Ichikawa v Valentin De Carvalho | 6-2,6-2 |
| ITF M15 Monastir | 2021/08/04 15:00 | Taisei Ichikawa v Matias Franco Descotte | 3-6,4-6 |
| ITF M15 Monastir | 2021/06/07 13:30 | Taisei Ichikawa v Miles Jones | 1-6,5-7 |
| ITF M15 Monastir | 2021/06/03 08:30 | Uisung Park v Taisei Ichikawa | 6-1,5-7,6-2 |
| ITF M15 Monastir | 2021/06/01 08:50 | Taisei Ichikawa v Ryota Tanuma | 7-6,6-3 |
| ITF M15 Monastir | 2021/05/26 12:05 | Taisei Ichikawa v Maxence Beauge | 3-6,6-7 |
| ITF M15 Monastir | 2021/08/10 07:30 | Takuya Kumasaka v Alan F R Fierros | 6-1,6-4 |
| ITF M15 Monastir | 2021/08/09 07:30 | Takuya Kumasaka v Dheeraj Kodancha Srinivasan | 6-2,6-1 |
| ITF M15 Monastir | 2021/08/08 07:30 | Mwendwa Mbithi v Takuya Kumasaka | 6-2,6-7,2-10 |
| ITF M15 Monastir | 2021/08/03 07:30 | Siddhant Banthia v Takuya Kumasaka | 6-3,5-7,13-11 |
| ITF M15 Káhira | 2021/04/18 07:00 | Takuya Kumasaka v Olexiy Kolisnyk | 2-6,0-6 |
| ITF M15 Káhira | 2021/04/11 11:00 | Benedikt Emesz v Takuya Kumasaka | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2021/04/05 11:30 | Adam Jones v Takuya Kumasaka | 4-6,6-1,10-7 |
| ITF M15 Sharm El Sheikh | 2021/03/28 07:00 | Takuya Kumasaka v Toby D. Boyer | 3-6,3-6 |