| Giraldilla Int. XD | 2018/06/21 00:30 | Young Woong Ha v Toby Penty | L | 0-2 |
| Giraldilla Int. XD | 2018/06/20 02:30 | Young Woong Ha v Kalle Koljonen | W | 2-0 |
| Swiss Open WD Qual | 2018/06/12 21:40 | Young Woong Ha v Guangzu Lu | L | 0-2 |
| Indonesia Masters XD | 2018/05/23 09:00 | Firman Abdul Kholik v Young Woong Ha | L | 2-1 |
| Indonesia Masters XD | 2018/05/21 09:00 | Young Woong Ha v Paul-Antoine Dostie-Guindon | W | 2-0 |
| Indonesia Masters XD | 2018/05/20 14:00 | Young Woong Ha v Pannawit Thongnuam | L | 0-2 |
| China Masters | 2018/04/11 10:40 | Young Woong Ha v Zeqi Zhou | L | 0-2 |
| Indonesia Masters XD | 2017/11/30 09:00 | Young Woong Ha v Brice Leverdez | L | 1-2 |
| Swiss Open WD Qual | 2018/09/25 03:10 | Dong Hoon Kim v Seong Hyun Son | L | 2-0 |
| Swiss Open WD Qual | 2018/09/04 07:45 | Seong Hyun Son v Arintap Das Gupta | L | 1-2 |
| Giraldilla Int. XD | 2018/07/26 04:35 | Chico Aura Dwi Wardoyo v Seong Hyun Son | L | 2-0 |
| Giraldilla Int. XD | 2018/07/25 06:10 | Andrew Susanto v Seong Hyun Son | W | 0-2 |
| Giraldilla Int. XD | 2018/07/24 01:40 | Seong Hyun Son v Kantawat Leelavechabutr | W | 2-1 |
| China Masters | 2018/04/10 02:20 | Zeqi Zhou v Seong Hyun Son | L | 2-0 |