| ATP Washington | 08/01 03:20 | 24 | [205] Tim Smyczek v Donald Young [58] | 6-4,3-6,4-6 | |
| ATP Atlanta | 07/26 21:20 | 26 | [51] Donald Young v Lukas Lacko [129] | 3-6,1-6 | |
| ATP Atlanta | 07/25 17:50 | 25 | [51] Donald Young v Tim Smyczek [194] | 6-4,6-2 | |
| Wimbledon | 07/05 17:25 | 24 | [2] Rafael Nadal v Donald Young [43] | 6-4,6-2,7-5 | |
| Wimbledon | 07/03 11:55 | 23 | [43] Donald Young v Denis Istomin [72] | Retired | |
| ATP Eastbourne | 06/29 10:30 | 27 | [4] Novak Djokovic v Donald Young [47] | 6-2,7-6 | |
| ATP Eastbourne | 06/28 12:55 | 26 | [47] Donald Young v Jared Donaldson [65] | 6-4,7-5 | |
| ATP Eastbourne | 06/26 10:00 | 25 | [47] Donald Young v Kyle Edmund [48] | 6-4,3-6,6-3 | |
| ATP Queen's | 06/23 12:45 | 27 | [7] Marin Cilic v Donald Young [55] | 6-4,7-5 | |
| ATP Queen's | 06/21 11:00 | 26 | [39] Viktor Troicki v Donald Young [55] | 3-6,4-6 | |
| ATP Queen's | 06/19 13:45 | 25 | [55] Donald Young v Nick Kyrgios [20] | Retired | |
| Franska öppna | 05/29 13:30 | 23 | [33] David Ferrer v Donald Young [51] | 5-7,6-3,4-6,6-3,13-11 | |
| ATP Lyon | 05/22 10:45 | 25 | [68] Hyeon Chung v Donald Young [51] | 6-2,6-3 | |
| ATP Rom | 05/14 10:00 | 24 | [35] Fernando Verdasco v Donald Young [46] | 6-3,6-3 | |
| ATP Houston | 04/12 17:50 | 25 | [42] Donald Young v Thiago Monteiro [81] | 3-6,4-6 | |
| ATP Miami | 03/28 14:50 | 26 | [40] Fabio Fognini v Donald Young [51] | 6-0,6-4 | |
| ATP Miami | 03/26 18:25 | 25 | [39] Benoit Paire v Donald Young [51] | 6-7,4-6 | |
| ATP Miami | 03/25 01:55 | 24 | [51] Donald Young v Lucas Pouille [15] | 6-2,6-4 | |
| ATP Miami | 03/22 18:00 | 23 | [51] Donald Young v Dustin Brown [78] | 6-3,1-6,6-2 | |
| ATP Indian Wells | 03/15 18:00 | 26 | [60] Donald Young v Kei Nishikori [5] | 2-6,4-6 | |
| ATP Indian Wells | 03/14 18:00 | 25 | [15] Lucas Pouille v Donald Young [60] | 4-6,6-1,3-6 | |
| ATP Indian Wells | 03/12 22:05 | 24 | [60] Donald Young v Sam Querrey [26] | 6-3,3-6,6-3 | |
| ATP Indian Wells | 03/11 00:40 | 23 | [60] Donald Young v Stefan Kozlov [116] | 7-5,7-6 | |
| ATP Acapulco | 03/01 22:00 | 26 | [63] Donald Young v Nick Kyrgios [17] | 2-6,4-6 | |
| ATP Acapulco | 02/28 22:00 | 25 | [41] Bernard Tomic v Donald Young [63] | Retired | |
| ATP Delray Beach | 02/25 20:00 | 28 | [21] Jack Sock v Donald Young [69] | 6-4,7-6 | |
| ATP Delray Beach | 02/24 15:00 | 27 | Steve Darcis v Donald Young | Walkover | |
| ATP Delray Beach | 02/23 19:30 | 26 | Taylor Fritz v Donald Young | 6-4,3-6,4-6 | |
| ATP Delray Beach | 02/21 19:30 | 25 | [69] Donald Young v Ivo Karlovic [20] | 7-6,7-6 | |
| ATP Memphis | 02/19 01:30 | 28 | [62] Ryan Harrison v Donald Young [81] | 6-4,6-4 |