| Shanghai | Round | Result | H | A | 
		
			| 08.10. |  | Cervantes I. - Donaldson J. | Q-1R | 2-6, 6-3, 6-2 | 2.89 | 1.38 | 
		
			| Tokyo (Japan Open) | Round | Result | H | A | 
		
			| 01.10. |  | Duckworth J. - Donaldson J. | Q-R16 | 7-65, 6-4 | 2.30 | 1.56 | 
		
			| Chengdu | Round | Result | H | A | 
		
			| 24.09. |  | Matosevic M. - Donaldson J. | Q-R16 | 7-5, 6-4 | 2.89 | 1.41 | 
		
			| US Open | Round | Result | H | A | 
		
			| 04.09. |  | Karlovic I. - Donaldson J. | 3R | 6-4, 7-63, 6-3 | 1.54 | 2.51 | 
		
			| 02.09. |  | Donaldson J. - Troicki V. | 2R | 7-5, 6-3, 6-3 | 1.98 | 1.82 | 
		
			| 30.08. |  | Donaldson J. - Goffin D. | 1R | 4-6, 7-5, 6-4, 6-0 | 5.89 | 1.14 | 
		
			| 26.08. |  | Donaldson J. - Giraldo S. | Q-3R | 6-2, 6-2 | 1.62 | 2.23 | 
		
			| 26.08. |  | Donaldson J. - Samper-Montana J. | Q-2R | 6-1, 7-61 | 1.06 | 8.68 | 
		
			| 25.08. |  | Donaldson J. - Struvay E. | Q-1R | 6-3, 6-4 | 1.07 | 7.94 | 
		
			| Cincinnati | Round | Result | H | A | 
		
			| 17.08. |  | Wawrinka S. - Donaldson J. | 2R | 2-6, 6-3, 6-4 | 1.14 | 5.60 | 
		
			| 15.08. |  | Donaldson J. - Almagro N. | 1R | 6-3, 7-62 | 2.20 | 1.65 | 
		
			| Los Cabos | Round | Result | H | A | 
		
			| 10.08. |  | Benneteau J. - Donaldson J. | 1R | 4-6, 7-64, 6-2 | 2.05 | 1.75 | 
		
			| 08.08. |  | Donaldson J. - Falla A. | Q-QF | 6-2, 6-3 | 1.41 | 2.76 | 
		
			| 07.08. |  | Donaldson J. - Lindstedt R. | Q-R16 | 4-6, 2-1 | 1.06 | 7.73 | 
		
			| Atlanta | Round | Result | H | A | 
		
			| 05.08. |  | Kyrgios N. - Donaldson J. | R16 | 7-64, 6-3 | 1.19 | 4.61 | 
		
			| 01.08. |  | Donaldson J. - Groth S. | 1R | 6-2, 6-4 | 1.61 | 2.28 | 
		
			| Toronto | Round | Result | H | A | 
		
			| 29.07. |  | Raonic M. - Donaldson J. | R16 | 6-2, 6-3 | 1.04 | 12.63 | 
		
			| 27.07. |  | Donaldson J. - Fognini F. | 2R | 6-3, 3-6, 6-3 | 3.28 | 1.33 | 
		
			| 26.07. |  | Donaldson J. - Millman J. | 1R | 6-4, 4-3 | 2.57 | 1.50 | 
		
			| 24.07. |  | Donaldson J. - Weintraub A. | Q-R16 | 6-4, 6-3 | 1.32 | 3.27 | 
		
			| 23.07. |  | Donaldson J. - Lakoseljac C. | Q-1R | 6-1, 6-1 | 1.03 | 10.54 | 
		
			| Washington | Round | Result | H | A | 
		
			| 20.07. |  | Paire B. - Donaldson J. | 2R | 6-0, 7-5 | 1.59 | 2.32 | 
		
			| 19.07. |  | Donaldson J. - Millot V. | 1R | 5-7, 6-2, 6-4 | 1.72 | 2.08 | 
		
			| 17.07. |  | Donaldson J. - Matosevic M. | Q-R16 | 7-69, 6-4 | 2.03 | 1.75 | 
		
			| Miami | Round | Result | H | A | 
		
			| 23.03. |  | Nishioka Y. - Donaldson J. | 1R | 6-3, 6-4 | 1.49 | 2.64 | 
		
			| 22.03. |  | Gonzalez A. - Donaldson J. | Q-2R | 6-2, 3-6, 6-2 | 2.26 | 1.60 | 
		
			| 21.03. |  | Donaldson J. - Jaziri M. | Q-1R | 6-2, 61-7, 7-61 | 1.54 | 2.38 | 
		
			| Irving challenger | Round | Result | H | A | 
		
			| 19.03. |  | Bedene A. - Donaldson J. | SF | 6-4, 6-3 | 1.57 | 2.30 | 
		
			| 18.03. |  | Donaldson J. - Rublev A. | QF | 6-4, 6-1 | 2.27 | 1.58 | 
		
			| 17.03. |  | Donaldson J. - Venus M. | R16 | 6-4, 67-7, 6-3 | 1.23 | 3.87 | 
		
			| 15.03. |  | Donaldson J. - Smyczek T. | 1R | 7-5, 6-4 | 2.39 | 1.54 | 
		
			| Indian Wells | Round | Result | H | A | 
		
			| 11.03. |  | Pospisil V. - Donaldson J. | 1R | 7-65, 62-7, 6-3 | 1.40 | 2.92 | 
		
			| Delray Beach | Round | Result | H | A | 
		
			| 13.02. |  | Novikov D. - Donaldson J. | Q-R16 | 6-3, 64-7, 6-3 | 2.39 | 1.54 | 
		
			| Maui challenger | Round | Result | H | A | 
		
			| 27.01. |  | Bolt A. - Donaldson J. | 1R | 64-7, 7-65, 6-3 | 3.07 | 1.34 | 
		
			| Australian Open | Round | Result | H | A | 
		
			| 13.01. |  | Tiafoe F. - Donaldson J. | Q-1R | 6-3, 6-3 | 2.40 | 1.53 | 
		
			| Brisbane | Round | Result | H | A | 
		
			| 03.01. |  | Dodig I. - Donaldson J. | Q-QF | 6-3, 3-6, 6-4 | 1.35 | 2.99 | 
		
			| 02.01. |  | Donaldson J. - Herbert P. | Q-R16 | 3-6, 6-3, 6-4 | 2.42 | 1.52 |