| Qatar Open - Mixed dubbel | 2018/07/18 02:05 | Donghyun Kim v Sin Hyok Pak | L | 1-4 |
| Qatar Open - Mixed dubbel | 2018/06/07 07:00 | Donghyun Kim v Kai Zhou | L | 1-4 |
| Qatar Open - Mixed dubbel | 2018/05/29 07:50 | Donghyun Kim v Daeseong Cho | L | 1-4 |
| Tjeckien - Extraleague | 2018/05/25 11:20 | Jonghoon Lim v Donghyun Kim | L | 4-3 |
| Tjeckien - Extraleague | 2018/05/24 12:10 | Donghyun Kim v Chih Yuan Chuang | W | 4-2 |
| Qatar Open - Mixed dubbel | 2018/05/23 11:50 | Donghyun Kim v Zhi Su | W | 4-3 |
| Qatar Open - Damer | 2018/05/02 18:00 | Donghyun Kim v Frane Kojic | L | 1-3 |
| Qatar Open - Mixed dubbel | 2018/03/22 14:40 | Masaki Yoshida v Donghyun Kim | L | 4-2 |
| Qatar Open - Mixed dubbel | 2018/07/24 03:30 | Sanil Shetty v Nathan Xu | L | 4-0 |