Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Gimcheon | 2019/06/20 04:05 | Seonyong Han v Takuto Niki | 4-6,2-6 |
| ITF M15 Changwon | 2019/10/15 04:50 | Seonyong Han v Uisung Park | 6-7,2-6 |
| ITF M15 Hua Hin | 2019/09/04 06:55 | Dusty H. Boyer v Seonyong Han | 7-6,6-4 |
| ITF M15 Hua Hin | 2019/08/28 03:00 | Seonyong Han v Hiroyasu Ehara | 1-6,5-7 |
| ITF M15 Jakarta | 2019/08/13 05:55 | Kento Takeuchi v Seonyong Han | 6-1,6-2 |
| ITF M15 Anseong | 2019/06/26 02:20 | Tae-Woo Lee v Seonyong Han | 7-6,5-7,6-4 |
| ITF M15 Anseong | 2019/06/24 01:00 | Seonyong Han v Young Seok Lee | 2-6,1-6 |
| ITF M15 Gimcheon | 2019/06/20 04:05 | Seonyong Han v Takuto Niki | 4-6,2-6 |
| ITF M15 Gimcheon | 2019/06/19 02:15 | Dominik Palan v Seonyong Han | 6-7,7-6,4-6 |
| ITF M15 Chiang Rai | 2022/04/13 07:35 | Seong Chan Hong v Takuto Niki | 6-3,6-4 |
| ITF M25 Canberra | 2022/03/30 00:25 | Takuto Niki v Eric Vanshelboim | 1-6,2-6 |
| ITF M25 Canberra | 2022/03/24 00:45 | Takuto Niki v Eric Vanshelboim | 3-6,6-7 |
| ITF M25 Canberra | 2022/03/23 01:10 | Omar Jasika v Takuto Niki | 2-6,6-7 |
| ITF M25 Bendigo | 2022/03/10 01:00 | Takuto Niki v Aaron Addison | 6-7,6-7 |
| ITF M25 Bendigo | 2022/03/08 23:00 | Andrew Harris v Takuto Niki | 2-6,3-6 |
| ITF M25 Bendigo | 2022/03/02 08:10 | Philip Sekulic v Takuto Niki | 6-7,7-6,7-6 |
| ITF M25 Pretoria | 2021/09/29 13:05 | Takuto Niki v Dylan Salton | 2-6,6-7 |