Round: 54 Ground: Hardcourt outdoor
| ITF Hong Kong F3 | 2015/06/21 02:00 | Seong-Gook Oh v Li-Wei Tan | 3-6,1-6 |
| ITF Hong Kong F3 | 2015/06/20 02:00 | Seong-Gook Oh v Wing-Lun Lam | 6-4,6-1 |
| ITF Hong Kong F2 | 2015/06/18 02:00 | Seong-Gook Oh v Marcos Giraldi Requena | 3-6,1-6 |
| ITF Hong Kong F2 | 2015/06/17 04:25 | Hyun-Woo Nam v Seong-Gook Oh | 2-6,2-6 |
| ITF Hong Kong F2 | 2015/06/15 04:35 | Shao-Fan Liu v Seong-Gook Oh | 5-7,7-6,0-6 |
| ITF Hong Kong F2 Qual | 2015/06/14 02:00 | Kai Yuen Leung v Seong-Gook Oh | 1-6,1-6 |
| ITF Korea F1 | 2015/05/17 02:00 | Seong-Gook Oh v Hyung-Chan Lim | 4-6,1-6 |
| ITF Japan F7 Qual | 2015/06/14 00:00 | Ju-Hae Moon v Kennosuke Nouchi | 6-3,6-4 |
| ITF Japan F5 | 2015/05/31 01:00 | Keisuke Numajiri v Kennosuke Nouchi | 6-2,6-0 |