| ATP Cup | 01/11 09:30 | 28 | [18] Alex De Minaur v Rafael Nadal [1] | 6-4,5-7,1-6 | |
| ATP Cup | 01/09 00:35 | 2 | [42] Daniel Evans v Alex De Minaur [18] | 7-6,4-6,7-6 | |
| ATP Cup | 01/07 09:00 | 2 | Stefanos Tsitsipas v Alex De Minaur | Cancelled | |
| ATP Cup | 01/05 02:05 | 2 | [15] Denis Shapovalov v Alex De Minaur [18] | 7-6,4-6,2-6 | |
| ATP Cup | 01/03 09:05 | 2 | [7] Alexander Zverev v Alex De Minaur [18] | 6-4,6-7,2-6 | |
| 2019 Davis Cup | 11/21 18:55 | - | [18] Alex De Minaur v Denis Shapovalov [15] | 3-6,6-3,7-5 | |
| 2019 Davis Cup | 11/20 20:55 | 2 | [11] David Goffin v Alex De Minaur [18] | 0-6,6-7 | |
| 2019 Davis Cup | 11/19 18:35 | 2 | [18] Alex De Minaur v Daniel Elahi Galan [194] | 6-4,6-3 | |
| ATP Next Gen Finals | 11/09 20:00 | 29 | [18] Alex De Minaur v Jannik Sinner [95] | 2-4,1-4,2-4 | |
| ATP Next Gen Finals | 11/08 18:00 | 28 | [18] Alex De Minaur v Frances Tiafoe [47] | 4-2,4-1,0-4,4-2 | |
| ATP Next Gen Finals | 11/07 13:00 | 3 | [18] Alex De Minaur v Casper Ruud [56] | 4-1,4-0,4-2 | |
| ATP Next Gen Finals | 11/06 15:35 | 2 | [18] Alex De Minaur v Miomir Kecmanovic [60] | 4-1,4-3,1-4,4-0 | |
| ATP Next Gen Finals | 11/05 14:40 | 1 | [18] Alex De Minaur v Alejandro Davidovich Fokina [87] | 4-2,3-4,4-1,4-1 | |
| ATP Paris | 10/31 13:15 | 26 | [18] Alex De Minaur v Stefanos Tsitsipas [7] | 3-6,4-6 | |
| ATP Paris | 10/30 14:00 | 25 | [10] Roberto Bautista-Agut v Alex De Minaur [18] | 6-7,6-7 | |
| ATP Paris | 10/29 12:20 | 24 | [38] Laslo Djere v Alex De Minaur [18] | 1-6,4-6 | |
| ATP Basel | 10/27 14:00 | 29 | [3] Roger Federer v Alex De Minaur [28] | 6-2,6-2 | |
| ATP Basel | 10/26 12:30 | 28 | [37] Reilly Opelka v Alex De Minaur [28] | 6-7,7-6,6-7 | |
| ATP Basel | 10/25 16:00 | 27 | [41] Jan-Lennard Struff v Alex De Minaur [28] | 4-6,6-7 | |
| ATP Basel | 10/23 18:25 | 26 | [28] Alex De Minaur v Taylor Fritz [31] | 6-3,6-3 | |
| ATP Basel | 10/21 18:15 | 25 | [28] Alex De Minaur v Hugo Dellien [78] | 6-1,7-5 | |
| ATP Shanghai | 10/08 04:30 | 24 | [24] Alex De Minaur v John Isner [17] | 6-7,4-6 | |
| ATP Tokyo | 10/02 04:25 | 25 | [25] Alex De Minaur v Lloyd Harris [99] | 3-6,7-6,6-7 | |
| ATP Zhuhai | 09/29 11:00 | 29 | [61] Adrian Mannarino v Alex De Minaur [31] | 6-7,4-6 | |
| ATP Zhuhai | 09/28 11:20 | 28 | [31] Alex De Minaur v Roberto Bautista-Agut [10] | 6-2,6-2 | |
| ATP Zhuhai | 09/27 11:30 | 27 | [31] Alex De Minaur v Borna Coric [14] | 6-2,4-6,6-4 | |
| ATP Zhuhai | 09/26 12:35 | 26 | [31] Alex De Minaur v Andy Murray [413] | 4-6,6-2,6-4 | |
| ATP Zhuhai | 09/24 08:10 | 25 | [31] Alex De Minaur v John Millman [79] | 6-1,6-3 | |
| US Open | 09/01 16:50 | 26 | [78] Grigor Dimitrov v Alex De Minaur [38] | 7-5,6-3,6-4 | |
| US Open | 08/30 15:00 | 25 | [38] Alex De Minaur v Kei Nishikori [7] | 6-2,6-4,2-6,6-3 |