Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2019/11/20 12:05 | Marek Gengel v Seong-Gook Oh | 6-3,6-0 |
| ITF M15 Sharm El Sheikh | 2019/11/13 08:00 | Karim-Mohamed Maamoun v Seong-Gook Oh | 6-2,6-2 |
| ITF M15 Changwon | 2019/10/17 01:00 | Shintaro Mochizuki v Seong-Gook Oh | 6-2,6-3 |
| ITF M15 Jakarta | 2019/08/15 02:30 | Seong-Gook Oh v Sho Shimabukuro | 6-4,2-6,4-6 |
| ITF M25 Nonthaburi | 2019/07/30 05:20 | Shintaro Imai v Seong-Gook Oh | 6-2,6-2 |
| ITF M25 Nonthaburi | 2019/07/23 05:25 | Seong-Gook Oh v Vladyslav Orlov | 6-7,3-6 |
| ITF M15 Anseong | 2019/06/28 02:45 | Thomas Fancutt v Seong-Gook Oh | 7-6,7-6 |
| ITF M15 Anseong | 2019/06/27 01:00 | Oh-Hee Kwon v Seong-Gook Oh | 2-6,2-6 |
| ITF M15 Nonthaburi | 2019/11/24 09:00 | Noppadol Noikor v Daisuke Sumizawa | 2-6,5-7 |
| ITF M15 Hua Hin | 2019/09/03 08:45 | Chien Hsun Lo v Noppadol Noikor | 6-1,6-1 |
| ITF M15 Hua Hin | 2019/09/02 04:20 | Noppadol Noikor v Palaphoom Kovapitukted | 6-1,6-2 |
| ITF M15 Hua Hin | 2019/08/27 06:40 | Noppadol Noikor v Nitin Kumar Sinha | 3-6,3-6 |
| ITF M25 Nonthaburi | 2019/08/01 05:30 | Marsel Ilhan v Noppadol Noikor | 6-2,6-4 |
| ITF M25 Nonthaburi | 2019/07/31 07:25 | Noppadol Noikor v Niki Kaliyanda Poonacha | 7-6,6-1 |
| ITF M25 Nonthaburi | 2019/07/30 04:50 | Noppadol Noikor v Natthasith Kunsuwan | 6-4,6-4 |
| ITF M25 Nonthaburi | 2019/07/29 04:55 | Jayden Court v Noppadol Noikor | 6-2,4-6,7-10 |