| Statistic | Value | Details |
| Biggest win by Adelaide United | 3 goals | 29/03/2024 Adelaide United 4-1 Western United FC |
| Biggest win by Western United FC | 4 goals | 7/03/2020 Adelaide United 1-5 Western United FC |
| Most goals scored by Adelaide United against Western United FC | 4 goals | 26/01/2020 Western United FC 3-4 Adelaide United |
| 6/11/2022 Western United FC 2-4 Adelaide United | ||
| 29/03/2024 Adelaide United 4-1 Western United FC | ||
| Most goals scored by Western United FC against Adelaide United | 5 goals | 7/03/2020 Adelaide United 1-5 Western United FC |
| Red cards | Mohamed Toure | 30/04/2021 Adelaide United 0-0 Western United FC |
| Victor Sanchez | 30/04/2021 Adelaide United 0-0 Western United FC | |
| Tomoki Imai | 29/03/2024 Adelaide United 4-1 Western United FC | |
| Hattricks scored in this fixture | Nestory Irankunda | 29/03/2024 Adelaide United 4-1 Western United FC |
| Most goals scored in this fixture | 1. 4 goals | Nestory Irankunda |
| Hiroshi Ibusuki | ||
| Noah Botic | ||
| Besart Berisha | ||
| 5. 3 goals | Connor Pain | |
| Zach Clough |
| Season | Date | Match Type | Adelaide United wins | Draws | Western United FC wins |
| 2019/20 | 26/01/2020 | League | Western United FC 3-4 Adelaide United | ||
| 2019/20 | 7/03/2020 | League | Adelaide United 1-5 Western United FC | ||
| 2020/21 | 27/12/2020 | League | Western United FC 0-0 Adelaide United | ||
| 2020/21 | 30/04/2021 | League | Adelaide United 0-0 Western United FC | ||
| 2021/22 | 17/12/2021 | League | Western United FC 1-0 Adelaide United | ||
| 2021/22 | 8/05/2022 | League | Adelaide United 2-1 Western United FC | ||
| 2022/23 | 6/11/2022 | League | Western United FC 2-4 Adelaide United | ||
| 2022/23 | 11/02/2023 | League | Western United FC 2-3 Adelaide United | ||
| 2022/23 | 16/04/2023 | League | Adelaide United 0-1 Western United FC | ||
| 2023/24 | 26/11/2023 | League | Western United FC 1-3 Adelaide United | ||
| 2023/24 | 29/03/2024 | League | Adelaide United 4-1 Western United FC | ||
| 2023/24 | 16/04/2024 | League | Western United FC 3-3 Adelaide United | ||
| 2024/25 | 9/11/2024 | League | Adelaide United 2-1 Western United FC | ||
| 2024/25 | 23/02/2025 | League | Western United FC 3-0 Adelaide United | ||
| 2024/25 | 9/05/2025 | A-League Finals | Western United FC 3-2 Adelaide United |