ATP Adelaide | 01/08 09:45 | 25 | [42] Mackenzie McDonald v Miomir Kecmanovic [55] | 4-6,2-6 | |
ATP Hong Kong | 01/02 06:00 | 25 | [43] Sebastian Ofner v Mackenzie McDonald [41] | 6-1,6-2 | |
ATP Paris | 11/01 23:10 | 25 | [4] Jannik Sinner v Mackenzie McDonald [42] | 6-7,7-5,6-1 | |
ATP Paris | 10/31 13:10 | 24 | [57] Jeffrey John Wolf v Mackenzie McDonald [42] | 6-1,4-6,2-6 | |
ATP Vienna | 10/24 11:00 | 25 | Mackenzie McDonald v Francisco Cerundolo | Cancelled | |
ATP Tokyo | 10/18 06:25 | 26 | [12] Tommy Paul v Mackenzie McDonald [37] | 6-4,6-2 | |
ATP Tokyo | 10/16 02:00 | 25 | [38] Mackenzie McDonald v Max Purcell [41] | 7-5,6-4 | |
ATP Shanghai | 10/06 05:55 | 24 | [38] Mackenzie McDonald v Francisco Cerundolo [21] | 6-7,6-7 | |
ATP Shanghai | 10/04 09:05 | 23 | [119] Corentin Moutet v Mackenzie McDonald [39] | 2-6,3-6 | |
ATP Beijing | 09/29 04:30 | 25 | [39] Mackenzie McDonald v Grigor Dimitrov [19] | 6-2,6-7,1-6 | |
ATP Zhuhai | 09/24 05:00 | 27 | [15] Karen Khachanov v Mackenzie McDonald [39] | 4-6,6-4,6-4 | |
ATP Zhuhai | 09/22 09:45 | 26 | [186] Kimmer Coppejans v Mackenzie McDonald [39] | 6-4,3-6,2-6 | |
ATP Zhuhai | 09/21 11:50 | 25 | [158] Juncheng Shang v Mackenzie McDonald [39] | 4-6,7-6,3-6 | |
Davis Cup | 09/16 13:00 | 1 | [39] Mackenzie McDonald v Otto Virtanen [125] | 6-7,6-1,6-7 | |
Davis Cup | 09/13 13:00 | 1 | [168] Dino Prizmic v Mackenzie McDonald [39] | 4-6,2-6 | |
US Open | 08/30 15:20 | 24 | [40] Mackenzie McDonald v Borna Gojo [105] | 3-6,4-6,4-6 | |
US Open | 08/28 21:45 | 23 | [15] Felix Auger Aliassime v Mackenzie McDonald [40] | 6-7,6-4,1-6,4-6 | |
ATP Cincinnati | 08/17 17:00 | 26 | [43] Mackenzie McDonald v Adrian Mannarino [32] | Retired | |
ATP Cincinnati | 08/16 21:55 | 25 | [5] Holger Rune v Mackenzie McDonald [43] | Retired | |
ATP Cincinnati | 08/16 01:40 | 24 | [43] Mackenzie McDonald v Yannick Hanfmann [50] | 7-5,6-1 | |
ATP Toronto | 08/11 16:30 | 27 | [59] Mackenzie McDonald v Alejandro Davidovich Fokina [37] | 4-6,2-6 | |
ATP Toronto | 08/10 16:30 | 26 | Mackenzie McDonald v Milos Raonic | 6-3,6-3 | |
ATP Toronto | 08/09 15:00 | 25 | [7] Andrey Rublev v Mackenzie McDonald [59] | 4-6,3-6 | |
ATP Toronto | 08/08 17:25 | 24 | [59] Mackenzie McDonald v Aslan Karatsev [71] | 6-3,6-4 | |
ATP Washington | 08/01 18:00 | 25 | [20] Grigor Dimitrov v Mackenzie McDonald [60] | 7-6,6-2 | |
ATP Washington | 07/31 20:30 | 24 | [60] Mackenzie McDonald v Diego Schwartzman [95] | 6-3,6-3 | |
ATP Newport | 07/21 17:00 | 27 | [59] Mackenzie McDonald v Alex Michelsen [190] | 3-6,3-6 | |
ATP Newport | 07/19 18:35 | 26 | [59] Mackenzie McDonald v Li Tu [252] | 6-4,7-6 | |
Wimbledon | 07/03 16:45 | 23 | [26] Alexander Bublik v Mackenzie McDonald [54] | 6-7,6-4,6-4,6-4 | |
ATP Eastbourne | 06/30 13:20 | 28 | [64] Mackenzie McDonald v Francisco Cerundolo [19] | 6-2,5-7,2-6 |
Michael Mackenzie Lowe McDonald (born April 16, 1995) is an American professional tennis player. He reached a career-high singles ranking of world No. 37 in singles and No. 49 in doubles in October 2023. He won the 2016 NCAA Division I Tennis Championships in both singles and doubles.