| 2018 Davis Cup | 09/16 08:45 | - | [8] Dominic Thiem v Alex De Minaur [38] | 6-4,6-2,3-6,6-4 | |
| 2018 Davis Cup | 09/14 10:50 | - | [133] Dennis Novak v Alex De Minaur [38] | 3-6,6-2,6-3,6-2 | |
| US Open | 09/02 02:10 | - | [7] Marin Cilic v Alex De Minaur [45] | 4-6,3-6,6-3,6-4,7-5 | |
| US Open | 08/30 21:15 | - | [45] Alex De Minaur v Frances Tiafoe [44] | 6-4,6-0,5-7,6-2 | |
| US Open | 08/28 22:35 | - | [45] Alex De Minaur v Taro Daniel [64] | 6-0,6-1,6-2 | |
| ATP Winston-Salem | 08/21 19:00 | - | [57] Daniil Medvedev v Alex De Minaur [43] | 6-3,6-3 | |
| ATP Washington | 08/05 19:00 | - | [3] Alexander Zverev v Alex De Minaur [72] | 6-2,6-4 | |
| ATP Washington | 08/04 22:45 | - | [72] Alex De Minaur v Andrey Rublev [46] | 5-7,7-6,6-4 | |
| ATP Washington | 08/04 00:20 | - | Alex De Minaur v Andy Murray | Walkover | |
| ATP Washington | 08/03 02:55 | - | [23] Hyeon Chung v Alex De Minaur [72] | 2-6,6-4,2-6 | |
| ATP Washington | 08/02 19:30 | - | [72] Alex De Minaur v Steve Johnson [34] | 6-4,7-5 | |
| ATP Washington | 07/31 22:15 | - | [92] Vasek Pospisil v Alex De Minaur [72] | 7-6,2-6,3-6 | |
| ATP Atlanta | 07/25 23:00 | - | [9] John Isner v Alex De Minaur [68] | 6-3,6-2 | |
| ATP Atlanta | 07/23 17:00 | - | [68] Alex De Minaur v Hubert Hurkacz [125] | 1-6,7-6,7-6 | |
| ATP Newport | 07/17 19:10 | - | [110] Ivo Karlovic v Alex De Minaur [68] | 6-7,7-6,7-5 | |
| Wimbledon | 07/07 12:00 | - | [80] Alex De Minaur v Rafael Nadal [1] | 1-6,2-6,4-6 | |
| Wimbledon | 07/05 10:30 | - | [80] Alex De Minaur v Pierre-Hugues Herbert [72] | 6-2,6-7,7-5,6-3 | |
| Wimbledon | 07/03 13:45 | - | [29] Marco Cecchinato v Alex De Minaur [80] | 4-6,7-6,6-7,4-6 | |
| ATP Eastbourne | 06/26 10:00 | - | [90] Mikhail Kukushkin v Alex De Minaur [77] | 6-1,6-2 | |
| ATP Eastbourne Qual | 06/24 10:00 | - | [78] Alex De Minaur v Matteo Viola [270] | 6-2,6-4 | |
| ATP Eastbourne Qual | 06/23 11:20 | - | Alex De Minaur v Jonathan Gray | 6-1,6-3 | |
| Challenger Nottingham | 06/17 11:45 | - | Daniel Evans v Alex De Minaur | 6-7,5-7 | |
| Challenger Nottingham | 06/16 14:35 | - | [115] Ilya Ivashka v Alex De Minaur [96] | 2-6,4-6 | |
| Challenger Nottingham | 06/15 13:40 | - | [119] Peter Polansky v Alex De Minaur [96] | 3-6,6-3,2-6 | |
| Challenger Nottingham | 06/14 16:30 | - | [190] Christopher Eubanks v Alex De Minaur [96] | 4-6,4-6 | |
| Challenger Nottingham | 06/12 10:00 | - | Jurgen Melzer v Alex De Minaur | 4-6,1-6 | |
| Challenger Surbiton | 06/10 13:00 | - | [86] Jeremy Chardy v Alex De Minaur [105] | 6-4,4-6,6-2 | |
| Challenger Surbiton | 06/09 14:10 | - | [105] Alex De Minaur v Matthew Ebden [73] | 6-4,6-4 | |
| Challenger Surbiton | 06/08 15:25 | - | [105] Alex De Minaur v Yuki Bhambri [93] | 6-3,7-5 | |
| Challenger Surbiton | 06/06 12:00 | - | [105] Alex De Minaur v Taylor Fritz [68] | 6-4,7-6 |