Stadium: Court 2 Round: 25 Ground: Grass
| Challenger Surbiton | 2019/06/04 10:00 | Andrew Watson v Yunseong Chung | 2-6,2-6 |
| Challenger Gwangju | 2019/05/16 05:45 | Yunseong Chung v Evgeny Donskoy | 5-7,4-6 |
| Challenger Gwangju | 2019/05/15 03:40 | Duckhee Lee v Yunseong Chung | 4-6,2-6 |
| Challenger Gwangju | 2019/05/14 05:00 | Jeamoon Lee v Yunseong Chung | 6-7,2-6 |
| Challenger Busan | 2019/05/10 07:05 | Ricardas Berankis v Yunseong Chung | 5-7,6-3,6-4 |
| Challenger Busan | 2019/05/09 06:45 | Yunseong Chung v Marcos Baghdatis | 6-2,6-3 |
| Challenger Busan | 2019/05/07 04:05 | Nikola Milojevic v Yunseong Chung | 2-6,6-3,5-7 |
| Challenger Busan | 2019/05/06 04:10 | Yunseong Chung v Zhe Li | 3-6,6-3,6-4 |
| French Open | 2019/05/22 13:05 | Peter Polansky v Alexandre Muller | 2-6,6-4,6-7 |
| French Open | 2019/05/20 08:00 | Peter Polansky v Darian King | 6-4,6-4 |
| Challenger Heilbronn | 2019/05/16 11:20 | Filip Krajinovic v Peter Polansky | 6-3,7-5 |
| Challenger Heilbronn | 2019/05/14 15:15 | Baptiste Crepatte v Peter Polansky | 1-6,6-7 |
| Challenger Aix en Provence | 2019/05/08 10:00 | Peter Polansky v Hugo Nys | 6-7,4-6 |
| Challenger Puerto Vallarta | 2019/05/02 20:00 | Blaz Rola v Peter Polansky | 7-6,6-7,6-1 |
| Challenger Puerto Vallarta | 2019/04/30 20:35 | Marcelo Arevalo v Peter Polansky | 6-3,4-6,3-6 |
| Challenger Tallahassee | 2019/04/23 16:40 | Federico Coria v Peter Polansky | 6-3,6-2 |