| Challenger de Newport Beach | 01/26 18:00 | 28 | [196] Brayden Schnur v Donald Young [231] | 6-2,3-6,7-6 | |
| Challenger de Newport Beach | 01/25 22:55 | 27 | [231] Donald Young v Collin Altamirano [309] | 6-2,6-1 | |
| Challenger de Newport Beach | 01/24 20:40 | 26 | [263] JC Aragone v Donald Young [231] | 3-6,4-6 | |
| Challenger de Newport Beach | 01/22 19:45 | 25 | [231] Donald Young v Noah Rubin [140] | 6-4,6-3 | |
| Challenger de Newport Beach | 01/21 18:00 | 24 | [453] Patrick Kypson v Donald Young [231] | 3-6,2-6 | |
| Open de Australia | 01/09 00:50 | 44 | [232] Donald Young v Enrique Lopez-Perez [213] | 7-5,1-6,2-6 | |
| Challenger de Nouméa | 01/05 02:00 | 28 | [135] Noah Rubin v Donald Young [248] | 6-2,6-3 | |
| Challenger de Nouméa | 01/04 02:35 | 27 | [238] Gleb Sakharov v Donald Young [248] | 7-5,3-6,1-6 | |
| Challenger de Nouméa | 01/02 23:30 | 26 | Donald Young v Rubin Statham | 7-5,6-1 | |
| Challenger de Nouméa | 01/01 23:00 | 25 | [212] Kimmer Coppejans v Donald Young [248] | 6-3,1-6,6-7 | |
| Challenger de Nouméa | 12/31 06:00 | 24 | [248] Donald Young v Renzo Olivo [331] | 7-6,6-3 | |
| Challenger de Fairfield | 10/09 18:55 | 25 | [264] Donald Young v Lloyd Harris [113] | 6-7,6-4,5-7 | |
| Challenger de Cary | 09/12 20:20 | 26 | [239] Donald Young v Reilly Opelka [143] | 1-6,6-7 | |
| Challenger de Cary | 09/12 00:10 | 25 | [265] Jan Choinski v Donald Young [239] | 7-6,2-6,1-6 | |
| Challenger de Chicago | 09/07 19:30 | 27 | [246] Donald Young v Reilly Opelka [173] | 6-3,2-6,6-7 | |
| Challenger de Chicago | 09/06 17:30 | 26 | [246] Donald Young v John-Patrick Smith [220] | 6-3,6-4 | |
| Challenger de Chicago | 09/05 18:35 | 25 | [88] Vasek Pospisil v Donald Young [246] | 2-6,2-6 | |
| US Open | 08/28 00:50 | 23 | [3] Juan M Del Potro v Donald Young [246] | 6-0,6-3,6-4 | |
| US Open | 08/24 15:00 | 46 | [120] Peter Polansky v Donald Young [242] | 5-7,6-1,3-6 | |
| US Open | 08/23 15:00 | 45 | [242] Donald Young v Simone Bolelli [144] | 0-6,6-4,6-2 | |
| US Open | 08/21 22:55 | 44 | [152] Mats Moraing v Donald Young [242] | 2-6,6-7 | |
| ATP Washington | 08/02 00:20 | 25 | [234] Donald Young v Kei Nishikori [20] | 3-6,4-6 | |
| ATP Washington | 07/31 23:00 | 24 | [198] Stan Wawrinka v Donald Young [234] | 4-6,7-6,6-7 | |
| ATP Washington - Clasificación | 07/29 16:25 | 64 | [121] Jason Jung v Donald Young [230] | Retired | |
| ATP Washington - Clasificación | 07/28 15:10 | 45 | [488] Danny Thomas v Donald Young [230] | 6-7,6-4,2-6 | |
| ATP Atlanta | 07/26 16:00 | 26 | [55] Matthew Ebden v Donald Young [230] | 6-4,6-4 | |
| ATP Atlanta | 07/23 23:00 | 25 | [117] Ivo Karlovic v Donald Young [230] | 6-2,6-7,6-7 | |
| ATP Newport | 07/16 16:20 | 25 | [232] Donald Young v Vasek Pospisil [98] | 6-7,1-6 | |
| Challenger de Winnetka | 07/10 20:55 | 25 | [160] Darian King v Donald Young [210] | 6-3,5-7,6-1 | |
| Wimbledon - Clasificación | 06/26 17:25 | 45 | [172] Dennis Novak v Donald Young [179] | 6-2,7-5 |