Stadium: Court 8 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Kashiwa | 2019/04/01 00:00 | Kuan-Yi Lee v Gage Brymer | 6-7,7-5,10-5 |
| ITF M15 Tsukuba | 2019/03/29 01:00 | Gage Brymer v Jumpei Yamasaki | 3-6,7-6,5-7 |
| ITF M15 Tsukuba | 2019/03/28 01:00 | Michael Look v Gage Brymer | 1-6,1-6 |
| ITF M15 Tsukuba | 2019/03/27 02:30 | Gage Brymer v Shao-Fan Liu | 6-2,4-6,6-3 |
| ITF M15 Tsukuba | 2019/03/25 04:30 | Quentin Folliot v Gage Brymer | 3-6,2-6 |
| ITF M15 Arcadia | 2019/03/12 17:30 | Gage Brymer v Aron Hiltzik | 6-7,2-6 |
| ITF M15 Arcadia | 2019/03/11 17:00 | Gage Brymer v Jesse Ross | 6-4,6-2 |
| ITF M15 Tucson | 2019/02/14 22:50 | Isaiah Strode v Gage Brymer | 4-6,6-3,6-3 |
| ITF M15 Tsukuba | 2019/03/25 01:00 | Ryuki Matsuda v Ken Onishi | 6-2,6-3 |
| ITF M15 Kofu | 2019/03/18 00:30 | Mick Veldheer v Ken Onishi | 7-5,6-2 |
| ITF M15 Sharm El Sheikh | 2019/03/11 08:00 | Ken Onishi v George Tsivadze | 3-6,6-2,8-10 |
| ITF M15 Sharm El Sheikh | 2019/03/06 12:35 | Ken Onishi v George Tsivadze | 3-6,6-2,3-6 |
| ITF Pakistan F3 | 2018/12/17 05:30 | Ken Onishi v Lorenzo Bocchi | 6-7,3-6 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Ken Onishi v Samuel Puskar | 3-6,3-6 |
| ITF Hungary F4 | 2018/06/12 11:25 | Patricio Heras v Ken Onishi | 3-6,6-3,6-1 |
| ITF Hungary F4 Qual | 2018/06/11 08:00 | Ken Onishi v Kristjan Tamm | 6-3,2-6,6-3 |