| Exo-Tennis Atlanta 2020 | 05/16 14:00 | 1 | [307] Young, Donald v King, Kevin [286] | 2-6,1-6 | |
| Exo-Tennis Atlanta 2020 | 05/15 18:50 | 1 | [238] Christopher Eubanks v Young, Donald [307] | 7-6,5-7,10-6 | |
| Exo-Tennis Atlanta 2020 | 05/15 16:35 | 1 | Blumberg, William v Young, Donald | 1-6,2-6 | |
| Exo-Tennis Atlanta 2020 | 05/14 20:20 | 1 | [307] Young, Donald v Pasha, Nathan [125] | 6-4,6-1 | |
| Exo-Tennis Atlanta 2020 | 05/14 19:00 | - | Young, Donald v Pasha, Nathan | View | |
| Exo-Tennis Atlanta 2020 | 05/14 17:35 | 1 | Bryde, Trent v Young, Donald | 6-2,6-1 | |
| Monterrey, Mexico | 03/04 02:35 | 25 | [54] Andujar, Pablo v Young, Donald [309] | 6-3,6-1 | |
| Monterrey, Mexico | 03/02 21:10 | 24 | [400] Matias Franco Descotte v Young, Donald [309] | 5-7,3-6 | |
| Challenger Columbus | 02/25 16:40 | 24 | [294] Young, Donald v Li, Zhe [208] | 5-7,6-7 | |
| Challenger - Cleveland | 02/11 20:30 | 25 | [283] Young, Donald v Sebastian Korda [236] | 3-6,2-6 | |
| Challenger - Cleveland | 02/11 00:30 | 24 | [283] Young, Donald v Ortega-Olmedo, Roberto [265] | 6-4,3-6,6-3 | |
| Challenger Dallas | 02/06 03:30 | 25 | [142] Mackenzie McDonald v Young, Donald [292] | 6-4,1-6,6-4 | |
| Challenger Dallas | 02/04 19:15 | 24 | [368] Stefan Kozlov v Young, Donald [292] | 2-6,2-6 | |
| Newport Beach, USA | 01/29 23:25 | 25 | Young, Donald v Mitchell Krueger | 6-3,1-6,4-6 | |
| Newport Beach, USA | 01/27 22:55 | 24 | [257] Young, Donald v Brandon Nakashima [360] | 1-6,7-6,6-4 | |
| Open d'Australie | 01/14 03:45 | 44 | [255] Young, Donald v Jason Jung [125] | 4-6,7-6,1-6 | |
| Houston, USA | 11/13 16:00 | 25 | Alexis Galarneau v Young, Donald | 3-6,6-3,6-0 | |
| Challenger Knoxville | 11/05 01:00 | 24 | [262] Liam Broady v Young, Donald [233] | 7-6,6-3 | |
| Challenger Charlottesville | 10/28 20:45 | 24 | [237] Young, Donald v Kavcic, Blaz [284] | 3-6,6-7 | |
| Challenger Las Vegas | 10/16 19:15 | 25 | [228] Young, Donald v Escobar, Gonzalo [353] | 6-7,5-7 | |
| Challenger Fairfield | 10/11 02:00 | 26 | [340] Jack Draper v Young, Donald [233] | 6-3,7-6 | |
| Challenger Fairfield | 10/09 20:10 | 25 | Sarkissian, Alexander v Young, Donald | 6-2,4-6,0-6 | |
| Challenger Fairfield | 10/07 20:30 | 24 | King, Evan v Young, Donald | Cancelled | |
| Challenger Tiburon | 09/24 23:20 | 25 | [242] Young, Donald v Ernesto Escobedo [218] | Retired | |
| Challenger Tiburon | 09/23 23:00 | 24 | [242] Young, Donald v Shane, Ryan [374] | 6-1,6-1 | |
| Columbus III, USA | 09/19 16:50 | 26 | [244] Young, Donald v Quiroz, Roberto [249] | 7-5,4-6,4-6 | |
| Columbus III, USA | 09/18 18:10 | 25 | [244] Young, Donald v Escobar, Gonzalo [359] | 6-2,6-7,6-1 | |
| Challenger Cary | 09/12 16:30 | 26 | [242] Young, Donald v Enzo Couacaud [207] | 1-6,6-3,3-6 | |
| Challenger Cary | 09/10 16:15 | 25 | [242] Young, Donald v Renzo Olivo [271] | 6-4,6-3 | |
| New Haven, USA | 09/04 19:20 | 25 | [139] Istomin, Denis v Young, Donald [197] | 6-4,6-3 |