ATP Dallas | 02/09 01:10 | 26 | [59] Mackenzie McDonald v Frances Tiafoe [14] | 1-6,3-6 | |
ATP Dallas | 02/07 18:00 | 25 | [118] Fernando Verdasco v Mackenzie McDonald [59] | 3-6,0-6 | |
Davis Cup | 02/04 10:10 | 45 | Khumoun Sultanov v Mackenzie McDonald | Cancelled | |
Davis Cup | 02/03 08:00 | 45 | [366] Sergey Fomin v Mackenzie McDonald [63] | 4-6,1-6 | |
Australian Open | 01/20 03:30 | 25 | [65] Mackenzie McDonald v Yoshihito Nishioka [33] | 6-7,3-6,2-6 | |
Australian Open | 01/18 03:40 | 24 | [2] Rafael Nadal v Mackenzie McDonald [65] | 4-6,4-6,5-7 | |
Australian Open | 01/16 02:15 | 23 | [49] Brandon Nakashima v Mackenzie McDonald [65] | 6-7,6-7,6-1,7-6,4-6 | |
ATP Adelaide 2 | 01/11 03:55 | 26 | [63] Mackenzie McDonald v Mikael Ymer [77] | 6-3,6-7,3-6 | |
ATP Adelaide 2 | 01/09 04:00 | 25 | [27] Daniel Evans v Mackenzie McDonald [63] | 5-7,5-7 | |
ATP Adelaide | 01/04 02:20 | 26 | [36] Yoshihito Nishioka v Mackenzie McDonald [63] | 6-4,6-3 | |
ATP Adelaide | 01/01 08:35 | 25 | [63] Mackenzie McDonald v Daniel Elahi Galan [67] | Retired | |
ATP Paris | 10/29 11:35 | 46 | [71] Tallon Griekspoor v Mackenzie McDonald [65] | 6-3,3-6,7-6 | |
ATP Basel | 10/25 12:15 | 25 | [46] Alex Molcan v Mackenzie McDonald [65] | 5-7,6-4,7-5 | |
ATP Naples | 10/22 12:00 | 28 | [74] Mackenzie McDonald v Matteo Berrettini [16] | 6-3,6-7,3-6 | |
ATP Naples | 10/21 12:45 | 27 | [109] Zhizhen Zhang v Mackenzie McDonald [74] | 6-4,3-6,2-6 | |
ATP Naples | 10/20 14:25 | 26 | [74] Mackenzie McDonald v Roberto Bautista-Agut [22] | 6-4,6-4 | |
ATP Naples | 10/20 08:00 | 25 | [74] Mackenzie McDonald v Francesco Passaro [124] | 6-3,7-5 | |
ATP Florence | 10/14 15:25 | 27 | [28] Lorenzo Musetti v Mackenzie McDonald [79] | 6-3,6-2 | |
ATP Florence | 10/13 11:00 | 26 | [126] Francesco Passaro v Mackenzie McDonald [79] | 4-6,5-7 | |
ATP Florence | 10/12 10:00 | 25 | [79] Mackenzie McDonald v Jenson Brooksby [42] | 6-4,4-6,6-1 | |
ATP Tokyo | 10/05 02:00 | 26 | [78] Mackenzie McDonald v Soonwoo Kwon [120] | 3-6,7-6,2-6 | |
ATP Tokyo | 10/04 02:00 | 25 | [78] Mackenzie McDonald v Kaichi Uchida [155] | 7-6,6-7,6-3 | |
ATP Seoul | 09/30 10:00 | 27 | [82] Mackenzie McDonald v Aleksandar Kovacevic [222] | 6-4,3-6,2-6 | |
ATP Seoul | 09/29 06:05 | 26 | [417] Shintaro Mochizuki v Mackenzie McDonald [82] | 3-6,4-6 | |
ATP Seoul | 09/29 05:40 | 26 | Taylor Fritz v Mackenzie McDonald | Cancelled | |
ATP Seoul | 09/27 03:00 | 25 | [82] Mackenzie McDonald v Pedro Martinez [67] | 7-5,6-4 | |
ATP San Diego | 09/22 20:15 | 26 | [84] Mackenzie McDonald v Jenson Brooksby [50] | 4-6,6-3,2-6 | |
ATP San Diego | 09/21 18:30 | 25 | [125] Henri Laaksonen v Mackenzie McDonald [84] | 0-6,2-6 | |
US Open | 08/30 15:00 | 23 | [59] Joao Sousa v Mackenzie McDonald [77] | 1-6,7-6,7-6,6-3 | |
ATP Cincinnati | 08/16 23:00 | 25 | [72] Mackenzie McDonald v Carlos Alcaraz [4] | 3-6,2-6 |
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.