Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Challenger Nur-Sultan | 2019/07/17 05:00 | Yunseong Chung v Edan Leshem | 6-4,4-6,6-4 |
| Challenger Nottingham | 2019/06/11 18:40 | Jack Draper v Yunseong Chung | 5-7,6-0,6-2 |
| Challenger Surbiton | 2019/06/05 13:15 | Yunseong Chung v Peter Polansky | 3-6,3-6 |
| 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 Nur-Sultan | 2019/07/16 10:40 | Nam Hoang Ly v Goncalo Oliveira | 4-6,4-6 |
| Challenger Perugia | 2019/07/09 15:20 | Goncalo Oliveira v Giulio Zeppieri | 6-7,6-7 |
| Challenger Recanati | 2019/07/01 09:55 | Goncalo Oliveira v Raul Brancaccio | 3-6,4-6 |
| ATP Antalya | 2019/06/23 10:30 | Goncalo Oliveira v Kevin Krawietz | 4-6,6-3,6-7 |
| ATP Antalya | 2019/06/22 10:00 | Goncalo Oliveira v Luke Saville | 6-3,6-4 |
| Challenger Bratislava | 2019/06/19 08:00 | Goncalo Oliveira v Frederico Ferreira Silva | 2-6,1-6 |
| Challenger Shymkent 2 | 2019/06/13 04:30 | Goncalo Oliveira v Stefano Travaglia | 3-6,3-6 |
| Challenger Shymkent 2 | 2019/06/11 07:55 | Goncalo Oliveira v Tomas Barrios Vera | 6-3,7-5 |