Stadium: Centre Court Round: 25
| ITF Korea F1 Qual | 2016/06/11 01:00 | Ji-Ha Kim v Young Seok Lee | 3-6,7-6,6-2 |
| Challenger Gimcheon Qual | 2018/05/07 05:00 | Makoto Ochi v Luke Saville | 2-6,6-3,7-6 |
| Challenger Gimcheon Qual | 2018/05/06 04:30 | Hiroyasu Ehara v Makoto Ochi | 7-6,3-6,4-6 |
| 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 |