[255] Donald Young 4-6,7-6,1-6 Jason Jung [125] 2020-01-14 03:45
Stadium: Court 3 Round: 44 Ground: Hardcourt outdoor
Head to Head
| US Open | 2019/08/20 16:15 | Donald Young v Jason Jung | 3-6,7-6,5-7 |
| ATP Atlanta | 2019/07/21 18:50 | Donald Young v Jason Jung | 1-6,6-7 |
Home History
| Challenger Houston | 2019/11/13 16:00 | Alexis Galarneau v Donald Young | 3-6,6-3,6-0 |
| Challenger Knoxville | 2019/11/05 01:00 | Liam Broady v Donald Young | 7-6,6-3 |
| Challenger Charlottesville | 2019/10/28 20:45 | Donald Young v Blaz Kavcic | 3-6,6-7 |
| Challenger Las Vegas | 2019/10/16 19:15 | Donald Young v Gonzalo Escobar | 6-7,5-7 |
| Challenger Fairfield | 2019/10/11 02:00 | Jack Draper v Donald Young | 6-3,7-6 |
| Challenger Fairfield | 2019/10/09 20:10 | Alexander Sarkissian v Donald Young | 6-2,4-6,0-6 |
| Challenger Tiburon | 2019/09/23 23:00 | Donald Young v Ryan Shane | 6-1,6-1 |
| Challenger Columbus 3 | 2019/09/19 16:50 | Donald Young v Roberto Quiroz | 7-5,4-6,4-6 |
Away History
| Challenger Canberra | 2020/01/06 23:00 | Darian King v Jason Jung | 4-6,6-4,6-3 |
| Australian Open WC | 2019/12/08 06:00 | Jason Jung v Tatsuma Ito | 5-7,4-6 |
| Australian Open WC | 2019/12/07 04:30 | Jason Jung v Duckhee Lee | 6-2,6-1 |
| Australian Open WC | 2019/12/06 02:00 | Jason Jung v Yuki Mochizuki | 6-1,6-4 |
| Australian Open WC | 2019/12/05 04:55 | Jason Jung v Jie Cui | 6-3,6-4 |
| Challenger Houston | 2019/11/15 22:35 | Marcos Giron v Jason Jung | 6-1,2-6,6-2 |
| Challenger Houston | 2019/11/15 19:50 | Alexey Vatutin v Jason Jung | 5-7,2-6 |
| Challenger Houston | 2019/11/13 16:00 | Daniel Nguyen v Jason Jung | 3-6,2-6 |