Stadium: I Round: 46
| ITF Japan F4 | 2018/03/29 01:00 | Makoto Ochi v Hiroyasu Ehara | 6-4,5-7,4-6 |
| ITF Japan F6 | 2018/04/15 04:00 | Hiroyasu Ehara v Renta Tokuda | 0-6,6-7 |
| ITF Japan F6 | 2018/04/14 01:00 | Kazuki Nishiwaki v Hiroyasu Ehara | 2-6,6-7 |
| ITF Japan F6 | 2018/04/13 01:00 | Hiroyasu Ehara v Sora Fukuda | 7-6,6-2 |
| ITF Japan F6 | 2018/04/12 01:00 | Hiroyasu Ehara v Yuta Shimizu | 5-7,7-6,6-1 |
| ITF Japan F6 Qual | 2018/04/11 01:00 | Hiroyasu Ehara v Hajime Nakashima | 6-1,6-2 |
| ITF Japan F5 | 2018/04/05 02:00 | Shintaro Imai v Hiroyasu Ehara | 3-6,5-7 |
| ITF Japan F5 | 2018/04/04 01:00 | Takuto Niki v Hiroyasu Ehara | 2-6,6-2,4-6 |
| ITF Japan F5 | 2018/04/02 04:10 | Yuki Matsuo v Hiroyasu Ehara | 2-6,2-6 |
| Challenger Gimcheon Qual | 2018/05/05 02:50 | Tae-Woo Lee v Makoto Ochi | 4-6,1-6 |
| Challenger Seoul | 2018/05/01 03:00 | Makoto Ochi v Jason Jung | 4-6,0-6 |
| Challenger Seoul Qual | 2018/04/30 03:00 | Luke Saville v Makoto Ochi | 6-7,3-6 |
| Challenger Seoul Qual | 2018/04/29 02:00 | Jung-Woong Na v Makoto Ochi | 2-6,4-6 |
| ITF Japan F6 | 2018/04/14 01:00 | Renta Tokuda v Makoto Ochi | 6-2,6-2 |
| ITF Japan F6 | 2018/04/13 01:30 | Naoki Tajima v Makoto Ochi | 4-6,6-1,0-6 |
| ITF Japan F6 | 2018/04/12 01:00 | Makoto Ochi v Zhe Li | 3-6,6-2,6-3 |
| ITF Japan F6 | 2018/04/11 01:00 | Makoto Ochi v Takuto Niki | 7-5,6-3 |