Mackenzie McDonald
| Challenger Champaign | 11/16 19:40 | 27 | [115] Cameron Norrie v Mackenzie McDonald [182] | 6-2,6-0 | |
| Challenger Champaign | 11/15 18:50 | 26 | [216] John-Patrick Smith v Mackenzie McDonald [182] | 5-7,6-7 | |
| Challenger Champaign | 11/13 21:20 | 25 | [182] Mackenzie McDonald v Michael Mmoh [170] | 6-2,6-1 | |
| Challenger Knoxville | 11/07 16:30 | 25 | [175] Mackenzie McDonald v Taylor Fritz [111] | 4-6,3-6 | |
| Challenger Charlottesville | 10/31 16:10 | 25 | [168] Mackenzie McDonald v Michael Mmoh [150] | 1-6,6-7 | |
| Challenger Las Vegas | 10/17 08:00 | 25 | Lucas Miedler v Mackenzie McDonald | Cancelled | |
| Challenger Fairfield | 10/15 20:25 | 29 | [313] Bradley Klahn v Mackenzie McDonald [218] | 4-6,2-6 | |
| Challenger Fairfield | 10/14 19:00 | 28 | [375] Christopher O'Connell v Mackenzie McDonald [218] | 4-6,5-7 | |
| Challenger Fairfield | 10/13 19:50 | 27 | [218] Mackenzie McDonald v Tennys Sandgren [98] | 7-6,6-2 | |
| Challenger Fairfield | 10/12 19:00 | 26 | [218] Mackenzie McDonald v Darian King [181] | 6-3,6-1 | |
| Challenger Fairfield | 10/10 19:00 | 25 | [142] Stefan Kozlov v Mackenzie McDonald [218] | 4-6,7-5,1-6 | |
| Challenger Stockton | 10/05 17:00 | 26 | [202] Mackenzie McDonald v Michael Mmoh [156] | 6-1,2-6,6-7 | |
| Challenger Stockton | 10/03 22:00 | 25 | [202] Mackenzie McDonald v Andre Goransson [459] | 6-2,4-6,6-2 | |
| Challenger Tiburon | 09/30 21:25 | 28 | [196] Mackenzie McDonald v Tennys Sandgren [104] | 6-7,6-7 | |
| Challenger Tiburon | 09/29 18:00 | 27 | [196] Mackenzie McDonald v Alejandro Gonzalez [485] | 6-4,3-6,6-1 | |
| Challenger Tiburon | 09/28 22:00 | 26 | [196] Mackenzie McDonald v Denis Kudla [166] | 7-6,6-2 | |
| Challenger Tiburon | 09/26 23:40 | 25 | [158] Darian King v Mackenzie McDonald [196] | 5-7,3-6 | |
| Challenger Columbus | 09/19 16:25 | 25 | Alexander Ward v Mackenzie McDonald | 6-2,6-2 | |
| Challenger Cary | 09/15 23:20 | 27 | [201] Mackenzie McDonald v Cameron Norrie [186] | 1-6,3-6 | |
| Challenger Cary | 09/14 17:40 | 26 | [201] Mackenzie McDonald v Christian Harrison [274] | 6-3,7-5 | |
| Challenger Cary | 09/13 16:00 | 25 | Mackenzie McDonald v Alexander Ward | 6-3,6-2 | |
| US Open Qual | 08/24 19:35 | 45 | [207] Mackenzie McDonald v Jan Satral [196] | 4-6,3-6 | |
| US Open Qual | 08/22 17:55 | 44 | [207] Mackenzie McDonald v Yannick Maden [181] | 6-4,6-3 | |
| ATP Cincinnati Qual | 08/13 18:20 | 46 | [71] Aleksander Dolgopolov v Mackenzie McDonald [207] | 6-3,6-4 | |
| ATP Cincinnati Qual | 08/12 21:40 | 45 | [207] Mackenzie McDonald v Denis Istomin [82] | 6-4,6-2 | |
| Challenger Aptos | 08/09 21:50 | 26 | [207] Mackenzie McDonald v Tennys Sandgren [102] | 1-6,2-6 | |
| Challenger Aptos | 08/08 23:40 | 25 | [207] Mackenzie McDonald v John Millman [152] | 6-7,6-4,6-0 | |
| Challenger Granby | 07/28 23:50 | 27 | [221] Mackenzie McDonald v Denis Shapovalov [130] | 3-6,6-4,3-6 | |
| Challenger Granby | 07/27 21:30 | 26 | Mackenzie McDonald v Samuel Monette | 6-1,6-1 | |
| Challenger Granby | 07/25 20:15 | 25 | [162] Jason Jung v Mackenzie McDonald [221] | 2-6,2-6 |
Wikipedia - Mackenzie McDonald
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.