ATP Miami | 03/18 14:00 | 44 | [60] Mackenzie McDonald v Peter Polansky [138] | 7-6,7-5 | |
ATP Indian Wells | 03/10 19:10 | 24 | [15] Daniil Medvedev v Mackenzie McDonald [62] | 7-5,6-0 | |
ATP Indian Wells | 03/09 02:00 | 23 | [62] Mackenzie McDonald v Joao Sousa [41] | 6-4,3-6,6-3 | |
ATP Acapulco | 02/28 23:00 | 27 | [71] Mackenzie McDonald v Cameron Norrie [64] | 3-6,2-6 | |
ATP Acapulco | 02/28 00:00 | 26 | [34] Frances Tiafoe v Mackenzie McDonald [71] | 7-6,5-7,3-6 | |
ATP Acapulco | 02/27 03:20 | 25 | Mackenzie McDonald v Emilio Nava | 6-1,6-3 | |
ATP Delray Beach | 02/24 01:00 | 28 | [84] Mackenzie McDonald v Radu Albot [82] | 6-3,0-6,0-6 | |
ATP Delray Beach | 02/23 01:25 | 27 | [4] Juan Martin Del Potro v Mackenzie McDonald [84] | 4-6,6-3,6-7 | |
ATP Delray Beach | 02/21 23:30 | 26 | [101] Guillermo Garcia-Lopez v Mackenzie McDonald [84] | 5-7,4-6 | |
ATP Delray Beach | 02/19 16:00 | 25 | [84] Mackenzie McDonald v Taylor Fritz [42] | 3-6,6-4,6-3 | |
ATP New York | 02/13 16:00 | 25 | [106] Denis Istomin v Mackenzie McDonald [82] | 4-6,6-2,6-3 | |
Challenger Dallas | 02/10 21:40 | 29 | [91] Mackenzie McDonald v Mitchell Krueger [209] | 6-4,6-7,1-6 | |
Challenger Dallas | 02/10 01:35 | 28 | [91] Mackenzie McDonald v Reilly Opelka [98] | 6-4,7-6 | |
Challenger Dallas | 02/09 03:25 | 27 | [91] Mackenzie McDonald v Brayden Schnur [158] | 6-2,6-2 | |
Challenger Dallas | 02/08 01:00 | 26 | [91] Mackenzie McDonald v Dustin Brown [232] | 6-4,6-2 | |
Challenger Dallas | 02/06 02:50 | 25 | [91] Mackenzie McDonald v Liam Broady [299] | 6-3,6-4 | |
Challenger Newport Beach | 01/24 19:55 | 26 | [196] Brayden Schnur v Mackenzie McDonald [81] | 6-2,6-4 | |
Challenger Newport Beach | 01/23 18:00 | 25 | [230] Mitchell Krueger v Mackenzie McDonald [81] | 3-6,4-6 | |
Australian Open | 01/16 01:40 | 24 | [7] Marin Cilic v Mackenzie McDonald [81] | 7-5,6-7,6-4,6-4 | |
Australian Open | 01/14 05:10 | 23 | [87] Andrey Rublev v Mackenzie McDonald [81] | 4-6,4-6,6-2,4-6 | |
ATP Auckland | 01/07 04:30 | 25 | [79] Mackenzie McDonald v Matteo Berrettini [52] | 3-6,4-6 | |
ATP Auckland | 01/06 00:55 | 164 | [78] Mackenzie McDonald v Laslo Djere [93] | 7-5,7-6 | |
ATP Auckland | 01/05 03:15 | 64 | [78] Mackenzie McDonald v Tim Puetz [317] | 6-2,7-6 | |
ATP Auckland | 01/05 03:00 | 64 | Mackenzie McDonald v Duckhee Lee | Cancelled | |
ATP Paris | 10/27 15:30 | 45 | [78] Mackenzie McDonald v Tennys Sandgren [61] | 6-4,3-6,4-6 | |
ATP Basel | 10/21 12:00 | 164 | [180] Alexei Popyrin v Mackenzie McDonald [84] | 6-4,4-6,6-4 | |
ATP Basel | 10/20 13:40 | 64 | [95] Marcel Granollers v Mackenzie McDonald [84] | 2-6,4-6 | |
ATP Antwerp | 10/17 10:00 | 26 | [32] Gilles Simon v Mackenzie McDonald [84] | 6-1,6-1 | |
ATP Antwerp | 10/15 15:00 | 25 | [84] Mackenzie McDonald v Nicolas Jarry [43] | 6-1,7-6 | |
ATP Shanghai | 10/10 09:40 | 25 | [28] Roberto Bautista-Agut v Mackenzie McDonald [78] | 3-6,6-4,6-1 |
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.