Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF Tunisia F9 | 2018/03/07 11:05 | Onishi, Ken v Brechemier, Thomas | 6-4,6-7,6-7 |
| ITF Tunisia F8 | 2018/02/28 11:20 | Ghorbel, Anis v Onishi, Ken | 6-4,1-6,6-2 |
| ITF Tunisia F7 | 2018/02/22 08:30 | Onishi, Ken v Tatlot, Johan Sebastien | 4-6,3-6 |
| ITF Tunisia F7 | 2018/02/20 09:00 | Onishi, Ken v Hovhannisyan, Mousheg | 4-6,7-6,6-0 |
| Launceston, Australia | 2018/02/04 00:25 | Matosevic, Marinko v Onishi, Ken | 6-4,6-0 |
| Launceston, Australia | 2018/02/03 04:20 | Onishi, Ken v Fujii, Shinta | 6-0,4-6,6-3 |
| Challenger - Burnie - Qualifications | 2018/01/27 04:00 | Onishi, Ken v van Peperzeel, Gavin | 5-7,7-6,4-6 |
| Challenger - Burnie - Qualifications | 2018/01/27 01:10 | Onishi, Ken v Calum Puttergill | 6-0,6-1 |
| ITF Egypt F9 | 2018/03/11 08:00 | Kerdlaphee, Phongsapak v Montsi, Siphosothando | 2-6,4-6 |
| ITF Egypt F8 | 2018/03/03 12:30 | Kerdlaphee, Phongsapak v Gerritsen, Stephan | 1-6,4-6 |
| Egypt F7, Singles Qualifying | 2018/02/24 08:00 | Gonzalez, Wilfredo v Kerdlaphee, Phongsapak | 6-2,6-3 |
| Egypt F6, Singles Qualifying | 2018/02/17 08:00 | Kerdlaphee, Phongsapak v Vejnovic, Marko | 1-6,5-7 |
| ITF Thailand F12 | 2017/12/12 03:00 | Sabanin, Yan v Kerdlaphee, Phongsapak | 6-1,2-6,6-4 |
| ITF Thailand F11 Qual | 2017/12/03 03:00 | Niesten, Miliaan v Kerdlaphee, Phongsapak | 6-3,6-2 |
| ITF Thailand F11 Qual | 2017/12/02 03:00 | Kerdlaphee, Phongsapak v Seol, Jae-Min | 6-4,6-3 |
| ITF Thailand F10 | 2017/11/27 05:35 | Kerdlaphee, Phongsapak v Rubin Statham | 3-6,1-6 |