ATP Dubai | 02/23 11:30 | 26 | [61] Mackenzie McDonald v Filip Krajinovic [44] | 6-4,7-6 | |
ATP Dubai | 02/22 10:00 | 25 | [22] Aslan Karatsev v Mackenzie McDonald [61] | 5-7,3-6 | |
ATP Doha | 02/14 16:15 | 25 | [27] Karen Khachanov v Mackenzie McDonald [51] | 7-6,6-3 | |
ATP Rotterdam | 02/09 14:25 | 26 | [34] Alex De Minaur v Mackenzie McDonald [49] | 7-6,1-6,6-4 | |
ATP Rotterdam | 02/07 12:05 | 25 | [49] Mackenzie McDonald v Nikoloz Basilashvili [21] | 6-3,6-2 | |
ATP Montpellier | 02/03 18:30 | 26 | [3] Alexander Zverev v Mackenzie McDonald [56] | 6-2,7-6 | |
ATP Montpellier | 02/02 11:30 | 25 | [48] Ilya Ivashka v Mackenzie McDonald [56] | 3-6,6-7 | |
Australian Open | 01/19 07:50 | 24 | [55] Mackenzie McDonald v Aslan Karatsev [15] | 6-3,2-6,2-6,3-6 | |
Australian Open | 01/17 06:10 | 23 | [139] Nikola Milojevic v Mackenzie McDonald [55] | 7-5,4-6,3-6,2-6 | |
ATP Adelaide 2 | 01/10 07:45 | 25 | [55] Mackenzie McDonald v Arthur Rinderknech [58] | 3-6,7-6,3-6 | |
ATP Melbourne | 01/06 10:10 | 26 | [55] Mackenzie McDonald v Botic Van De Zandschulp [57] | 2-6,5-7 | |
ATP Melbourne | 01/04 08:05 | 25 | [55] Mackenzie McDonald v Peter Gojowczyk [86] | 6-0,6-3 | |
ATP Stockholm | 11/07 17:55 | 25 | [45] Alejandro Davidovich Fokina v Mackenzie McDonald [54] | 6-2,3-6,7-5 | |
ATP Paris | 11/01 10:00 | 24 | [34] Dusan Lajovic v Mackenzie McDonald [54] | 6-3,6-4 | |
ATP St Petersburg | 10/28 16:15 | 26 | [20] Roberto Bautista-Agut v Mackenzie McDonald [56] | 6-3,6-2 | |
ATP St Petersburg | 10/26 13:30 | 25 | [105] Egor Gerasimov v Mackenzie McDonald [56] | 5-7,4-6 | |
ATP Moscow | 10/21 17:55 | 26 | [117] Gilles Simon v Mackenzie McDonald [55] | 6-3,6-2 | |
ATP Moscow | 10/20 10:25 | 25 | [55] Mackenzie McDonald v Yoshihito Nishioka [78] | 6-3,6-4 | |
ATP Indian Wells | 10/10 01:00 | 24 | [2] Daniil Medvedev v Mackenzie McDonald [57] | 6-4,6-2 | |
ATP Indian Wells | 10/07 19:45 | 23 | [57] Mackenzie McDonald v James Duckworth [55] | 6-3,6-3 | |
US Open | 09/02 19:55 | 24 | [56] Kei Nishikori v Mackenzie McDonald [61] | 7-6,6-3,6-7,2-6,6-3 | |
US Open | 08/31 15:00 | 23 | [61] Mackenzie McDonald v David Goffin [30] | 6-2,7-5,6-3 | |
ATP Cincinnati | 08/18 18:35 | 25 | [2] Daniil Medvedev v Mackenzie McDonald [64] | 6-2,6-2 | |
ATP Cincinnati | 08/17 02:00 | 24 | [86] Brandon Nakashima v Mackenzie McDonald [63] | 5-7,2-6 | |
ATP Toronto | 08/10 19:35 | 24 | [50] Benoit Paire v Mackenzie McDonald [64] | 6-3,6-4 | |
ATP Washington | 08/08 21:00 | 29 | [107] Mackenzie McDonald v Jannik Sinner [24] | 5-7,6-4,5-7 | |
ATP Washington | 08/07 22:00 | 28 | [67] Kei Nishikori v Mackenzie McDonald [107] | 4-6,6-3,5-7 | |
ATP Washington | 08/07 01:15 | 27 | [107] Mackenzie McDonald v Denis Kudla [103] | 6-3,6-2 | |
ATP Washington | 08/05 23:05 | 26 | [65] Ilya Ivashka v Mackenzie McDonald [107] | 4-6,4-6 | |
ATP Washington | 08/04 22:10 | 25 | [107] Mackenzie McDonald v Benoit Paire [49] | 6-7,6-4,6-4 |
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.