| Statistic | Value | Details |
| Biggest win by Sydney FC | 3 goals | 19/03/2022 Sydney FC 3-0 Western United FC |
| 17/09/2023 Sydney FC 3-0 Western United FC (Cup) | ||
| Biggest win by Western United FC | 1 goal | 15/08/2020 Sydney FC 1-2 Western United FC |
| 23/02/2022 Western United FC 1-0 Sydney FC | ||
| 21/01/2023 Western United FC 1-0 Sydney FC | ||
| 14/12/2024 Sydney FC 3-4 Western United FC | ||
| 27/04/2025 Western United FC 1-0 Sydney FC | ||
| Most goals scored by Sydney FC against Western United FC | 4 goals | 23/12/2023 Sydney FC 4-2 Western United FC |
| Most goals scored by Western United FC against Sydney FC | 4 goals | 14/12/2024 Sydney FC 3-4 Western United FC |
| Red cards | Andrew Durante | 10/03/2021 Sydney FC 2-0 Western United FC |
| Hattricks scored in this fixture | None | N/A |
| Most goals scored in this fixture | 1. 5 goals | Adam le Fondre |
| 2. 3 goals | Steven Lustica | |
| Joe Lolley | ||
| Robert Mak | ||
| 5. 2 goals | Noah Botic | |
| Matthew Grimaldi | ||
| Jack Rodwell | ||
| Adrian Segecic | ||
| Fabio Gomez | ||
| Rhyan Grant |
| Season | Date | Match Type | Sydney FC wins | Draws | Western United FC wins |
| 2019/20 | 1/12/2019 | League | Western United FC 0-2 Sydney FC | ||
| 2019/20 | 15/08/2020 | League | Sydney FC 1-2 Western United FC | ||
| 2020/21 | 10/03/2021 | League | Sydney FC 2-0 Western United FC | ||
| 2020/21 | 15/05/2021 | League | Western United FC 0-1 Sydney FC | ||
| 2021/22 | 12/02/2022 | League | Sydney FC 1-1 Western United FC | ||
| 2021/22 | 23/02/2022 | League | Western United FC 1-0 Sydney FC | ||
| 2021/22 | 19/03/2022 | League | Sydney FC 3-0 Western United FC | ||
| 2022/23 | 16/10/2022 | League | Western United FC 1-3 Sydney FC | ||
| 2022/23 | 21/01/2023 | League | Western United FC 1-0 Sydney FC | ||
| 2022/23 | 1/04/2023 | League | Sydney FC 3-3 Western United FC | ||
| 2023/24 | 17/09/2023 | FFA Cup | Sydney FC 3-0 Western United FC | ||
| 2023/24 | 23/12/2023 | League | Sydney FC 4-2 Western United FC | ||
| 2023/24 | 3/02/2024 | League | Western United FC 2-2 Sydney FC | ||
| 2024/25 | 14/12/2024 | League | Sydney FC 3-4 Western United FC | ||
| 2024/25 | 27/04/2025 | League | Western United FC 1-0 Sydney FC | ||
| 2025/26 | 29/07/2025 | FFA Cup | Western United FC 0-1 Sydney FC |