[127] Mackenzie McDonald 6-4,6-4 Dusan Lajovic [37] 2021-04-27 09:00
Stadium: Center Court Round: 25 Ground: Clay
Home History
| ATP Munich | 2021/04/25 09:00 | Andrej Martin v Mackenzie McDonald | 3-6,2-6 |
| ATP Munich | 2021/04/24 09:00 | Peter Gojowczyk v Mackenzie McDonald | 1-6,2-6 |
| Challenger Orlando | 2021/04/13 14:00 | Christian Harrison v Mackenzie McDonald | 7-5,6-3 |
| ATP Miami | 2021/03/27 01:05 | Mackenzie McDonald v John Isner | 6-2,3-6,5-7 |
| ATP Miami | 2021/03/24 21:30 | Vasek Pospisil v Mackenzie McDonald | 3-6,6-4,3-6 |
| ATP Miami | 2021/03/23 15:45 | Mackenzie McDonald v Ivo Karlovic | 7-6,6-4 |
| ATP Miami | 2021/03/22 16:25 | Mackenzie McDonald v Roberto Cid Subervi | 6-1,6-1 |
| ATP Marseille | 2021/03/10 15:10 | Karen Khachanov v Mackenzie McDonald | 7-6,6-4 |
Away History
| ATP Belgrade | 2021/04/22 12:30 | Federico Delbonis v Dusan Lajovic | 6-3,2-6,6-4 |
| ATP Monte Carlo | 2021/04/12 15:25 | Daniel Evans v Dusan Lajovic | 6-3,6-7,6-2 |
| ATP Miami | 2021/03/29 02:05 | Frances Tiafoe v Dusan Lajovic | 1-6,7-5,6-3 |
| ATP Miami | 2021/03/26 15:00 | Ernesto Escobedo v Dusan Lajovic | 2-6,3-6 |
| ATP Dubai | 2021/03/17 15:35 | Marton Fucsovics v Dusan Lajovic | 6-1,4-6,6-4 |
| ATP Dubai | 2021/03/16 11:40 | Malek Jaziri v Dusan Lajovic | 5-7,2-6 |
| ATP Doha | 2021/03/09 14:15 | Dusan Lajovic v Marton Fucsovics | 6-7,3-6 |
| ATP Rotterdam | 2021/03/04 18:30 | Dusan Lajovic v Borna Coric | 3-6,2-6 |