[120] Mackenzie McDonald 7-6,6-4 Ivo Karlovic [172] 2021-03-23 15:45
Stadium: Court 2 Round: 19 Ground: Hardcourt outdoor
Home History
| 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 |
| ATP Marseille | 2021/03/09 12:30 | Stefano Travaglia v Mackenzie McDonald | 6-7,6-7 |
| Challenger Nur-Sultan | 2021/03/04 07:35 | Mackenzie McDonald v Tomas Machac | 4-6,1-6 |
| Challenger Nur-Sultan | 2021/03/02 09:45 | Mackenzie McDonald v Brayden Schnur | 6-3,4-6,6-4 |
| Challenger Nur-Sultan | 2021/02/28 13:00 | Mackenzie McDonald v Jurij Rodionov | 6-1,6-2 |
| Challenger Nur-Sultan | 2021/02/27 05:00 | Mackenzie McDonald v Henri Laaksonen | 6-2,6-1 |
| Challenger Nur-Sultan | 2021/02/26 05:00 | Mackenzie McDonald v Frederico Ferreira Silva | 6-4,3-6,7-6 |
Away History
| ATP Miami | 2021/03/22 15:40 | Tatsuma Ito v Ivo Karlovic | 3-6,6-7 |
| ATP Delray Beach | 2021/01/10 23:00 | Roberto Quiroz v Ivo Karlovic | 6-2,6-4 |
| ATP Delray Beach | 2021/01/08 23:00 | Ivo Karlovic v Pablo Andujar | 6-3,5-7,6-4 |
| ATP Cologne | 2020/10/10 09:00 | Ivo Karlovic v Marc Polmans | 1-6,4-6 |
| French Open | 2020/09/23 11:20 | Benjamin Bonzi v Ivo Karlovic | 6-3,7-6 |
| French Open | 2020/09/21 13:40 | Noah Rubin v Ivo Karlovic | 6-7,4-6 |
| US Open | 2020/09/01 23:30 | Ivo Karlovic v Richard Gasquet | 6-7,6-7,1-6 |
| Matchplay 120 | 2020/06/12 13:00 | JC Aragone v Ivo Karlovic | 7-6,7-5 |