Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Gimcheon | 2017/05/01 04:25 | Klein, Brydan v Yunseong Chung | 6-3,6-4 |
| Challenger Noumea | 2019/01/01 04:25 | Yunseong Chung v Jurij Rodionov | 4-6,1-6 |
| Challenger Noumea | 2018/12/31 00:30 | Yunseong Chung v Brkic, Tomislav | 6-3,6-2 |
| Open d'Australie Playoff Wilcard Australienne | 2018/11/30 05:45 | Zhe Li v Yunseong Chung | 6-4,6-4 |
| Open d'Australie Playoff Wilcard Australienne | 2018/11/29 03:50 | Rigele Te v Yunseong Chung | 6-7,1-6 |
| Challenger Kobe | 2018/11/16 04:45 | Yunseong Chung v Tatsuma Ito | 2-6,3-6 |
| Challenger Kobe | 2018/11/14 05:00 | Nam Hoang Ly v Yunseong Chung | 4-6,2-6 |
| Challenger Kobe | 2018/11/13 02:00 | Yunseong Chung v Jelle Sels | 7-6,7-6 |
| Liuzhou, Chine | 2018/10/22 04:45 | Yunseong Chung v Emil Ruusuvuori | 6-3,6-3 |
| Challenger Canberra | 2019/01/06 03:00 | Klein, Brydan v Kelly, Dayne | 6-4,6-4 |
| Challenger Canberra 2 | 2018/10/30 00:45 | Maxime Janvier v Klein, Brydan | 6-4,6-3 |
| Challenger Canberra 2 | 2018/10/28 02:05 | Tung-Lin Wu v Klein, Brydan | 6-7,4-6 |
| Challenger Canberra 2 | 2018/10/27 04:40 | Bourchier, Edward v Klein, Brydan | 2-6,1-6 |
| Challenger Canberra 2 | 2018/10/27 01:20 | Tomislav E Papac v Klein, Brydan | 0-6,3-6 |
| Challenger Traralgon | 2018/10/26 01:30 | Klein, Brydan v Marc Polmans | 3-6,4-6 |
| Challenger Traralgon | 2018/10/24 01:40 | Jason Kubler v Klein, Brydan | 4-6,7-6,3-6 |
| Challenger Traralgon | 2018/10/23 02:10 | Beale, Jeremy v Klein, Brydan | 6-7,6-7 |