Stadium: C.2 Round: 25 Ground: Synthetic outdoor
| ITF Guam F1 | 2016/05/24 00:00 | Kikuchi, Gengo v Onoda, Ken | 7-5,6-1 |
| ITF Guam F1 | 2015/05/28 01:15 | Onoda, Ken v Kikuchi, Gengo | 4-6,6-7 |
| Akishima, Singles M-ITF-JPN-08A | 2019/06/11 03:30 | Tashiro, Yuga v Onoda, Ken | 3-6,4-6 |
| ITF Guam F1 | 2018/06/18 00:00 | Onoda, Ken v Katayama, Sho | 3-6,2-6 |
| ITF Singapore F3 | 2018/05/27 03:00 | Onoda, Ken v Congsup Congcar | 4-6,4-6 |
| ITF Singapore F3 | 2018/05/26 03:00 | Onoda, Ken v Chua, Kenneth | 6-2,6-0 |
| ITF Singapore F2 | 2018/05/20 03:00 | Kazuki Nishiwaki v Onoda, Ken | 6-1,6-2 |
| ITF Singapore F2 | 2018/05/19 02:00 | Tan, Jonathan-Kyle v Onoda, Ken | 6-7,2-6 |
| ITF Singapore F1 | 2018/05/14 02:00 | Hovhannisyan, Mousheg v Onoda, Ken | 6-0,6-1 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Ono, Masayoshi v Onoda, Ken | 6-2,6-4 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/09 00:00 | Kikuchi, Gengo v Ehara, Hiroyasu | 6-2,6-2 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/08 00:00 | Kikuchi, Gengo v Takeuchi, Kento (1987) | 6-2,7-5 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/07 01:50 | Samper-Montana, Jordi v Kikuchi, Gengo | 2-6,0-6 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/06 02:55 | Tagashira, Kento v Kikuchi, Gengo | 2-6,2-6 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/05 00:00 | Jirasook, Kyler v Kikuchi, Gengo | 2-6,2-6 |
| ITF - M15 Karuizawa | 2019/05/31 02:40 | Kikuchi, Gengo v Sora Fukuda | 6-4,4-6,0-6 |
| ITF - M15 Karuizawa | 2019/05/30 06:15 | Kikuchi, Gengo v Ren Nakamura | 6-2,6-2 |
| ITF - M15 Karuizawa | 2019/05/29 02:30 | Kikuchi, Gengo v Taketo Takamisawa | 6-0,6-1 |