Stadium: Court 10 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Gimcheon | 2019/06/12 03:20 | Seong-Gook Oh v Seita Watanabe | 6-7,6-2,6-3 |
| ITF M15 Gimcheon | 2019/06/11 02:50 | Seita Watanabe v Hyung-Chan Lim | 6-4,6-0 |
| ITF M15 Gimcheon | 2019/06/10 02:00 | Seita Watanabe v Jin Sung Han | 6-1,6-2 |
| ITF M15 Daegu | 2019/06/06 02:00 | Jung-Woong Na v Seita Watanabe | 6-3,6-2 |
| ITF M15 Daegu | 2019/06/05 03:55 | Seita Watanabe v Issei Okamura | 6-4,7-6 |
| ITF M15 Daegu | 2019/06/04 02:20 | Seita Watanabe v Seung-Hun Shin | 6-0,6-1 |
| ITF M15 Daegu | 2019/06/03 05:00 | Seita Watanabe v Dae-Hee Lee | 6-2,6-0 |
| ITF M15 Tabarka | 2019/05/16 10:30 | Manuel Guinard v Seita Watanabe | 6-3,6-1 |
| ITF M15 Gimcheon | 2019/06/17 01:00 | Seong Taek Im v Young-Hoon Jeong | 5-7,6-3,10-6 |
| ITF M15 Daegu | 2019/06/04 03:00 | Seong Taek Im v Sungbeen Sim | 0-6,1-6 |
| ITF M15 Daegu | 2019/06/03 07:00 | Seong Taek Im v Hyeon il Jung | 6-2,6-1 |
| ITF Korea F5 | 2018/08/23 02:00 | Cheong-Eui Kim v Seong Taek Im | 7-6,6-0 |
| ITF Korea F5 | 2018/08/21 04:20 | Hyeong Don Kim v Seong Taek Im | 6-4,3-6,1-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Seong Jae Han v Seong Taek Im | 2-6,2-6 |
| ITF Korea F5 | 2018/08/19 02:00 | Seong Taek Im v Seungri Choi | 6-3,6-2 |
| ITF Korea F5 | 2018/08/18 03:00 | Seong Taek Im v Yusei Fukuoka | 6-1,6-2 |