Stadium: C.2 Round: 25 Ground: Synthetic outdoor
| ITF Guam F1 | 2016/05/24 00:00 | Gengo Kikuchi v Ken Onoda | 7-5,6-1 |
| ITF Guam F1 | 2015/05/28 01:15 | Ken Onoda v Gengo Kikuchi | 4-6,6-7 |
| ITF M15 Akishima | 2019/06/11 03:30 | Yuga Tashiro v Ken Onoda | 3-6,4-6 |
| 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 M15 Guam | 2019/06/09 00:00 | Gengo Kikuchi v Hiroyasu Ehara | 6-2,6-2 |
| ITF M15 Guam | 2019/06/08 00:00 | Gengo Kikuchi v Kento Takeuchi | 6-2,7-5 |
| ITF M15 Guam | 2019/06/07 01:50 | Jordi Samper-Montana v Gengo Kikuchi | 2-6,0-6 |
| ITF M15 Guam | 2019/06/06 02:55 | Kento Tagashira v Gengo Kikuchi | 2-6,2-6 |
| ITF M15 Guam | 2019/06/05 00:00 | Kyler Jirasook v Gengo Kikuchi | 2-6,2-6 |
| ITF M15 Karuizawa | 2019/05/31 02:40 | Gengo Kikuchi v Sora Fukuda | 6-4,4-6,0-6 |
| ITF M15 Karuizawa | 2019/05/30 06:15 | Gengo Kikuchi v Ren Nakamura | 6-2,6-2 |
| ITF M15 Karuizawa | 2019/05/29 02:30 | Gengo Kikuchi v Taketo Takamisawa | 6-0,6-1 |