| WTT Star Contender Ljubljana | 06/13 20:10 | 6 | Jules Rolland v Junsung Oh | L | 3-2 | |
| WTT Contender Zagreb | 06/06 16:00 | 5 | Junsung Oh v Chun Ting Wong | L | 0-3 | |
| WTT Contender Mendoza | 05/30 17:10 | 5 | Junsung Oh v Lilian Bardet | L | 1-3 | |
| WTT Contender Rio De Janeiro | 05/23 18:50 | 5 | Jonghoon Lim v Junsung Oh | L | 3-2 | |
| WTT Saudi Smash | 05/05 16:10 | 6 | Junsung Oh v Timo Boll | L | 0-3 | |
| WTT Feeder Havirov | 04/15 16:35 | 5 | Seongil Jang v Junsung Oh | L | 3-2 | |
| WTT Feeder Dusseldorf | 04/10 16:35 | 5 | Junsung Oh v Cheng-Ting Liao | L | 2-3 | |
| WTT Feeder Varazdin | 04/04 16:00 | 6 | Junsung Oh v Filip Zeljko | L | 2-3 | |
| WTT Champions Incheon | 03/29 10:55 | 4 | Junsung Oh v Tomokazu Harimoto | L | 2-3 | |
| WTT Champions Incheon | 03/27 07:10 | 5 | Junsung Oh v Omar Assar | W | 3-2 | |
| Singapore Smash | 03/10 12:45 | 6 | Junsung Oh v Mattias Falck | L | 2-3 | |
| WTT Star Contender Goa | 01/27 15:15 | 3 | Patrick Franziska v Junsung Oh | L | 3-2 |