Tumwater T-Birds
First meeting: Sept. 23, 2016 - Tumwater 27, Union 20
Latest meeting: Oct. 4, 2024 - Tumwater 56, Union 10
Next meeting: 2025
Meetings total: 3
All-time series: Tumwater Leads 2-1
League series: n/a
Post-season series: n/a
Largest victory: Tumwater, 56-10 (2024)
Longest win streak: 1
Current win streak: Tumwater, 1 (2024-present)
| Tumwater Victories | Union Victories | Tie Games |
| No. | Date | Winning Team | Losing Team | |||
| 1 | Sept. 23, 2016 | at Tumwater | 27 | Union | 20 | |
| 2 | Sept. 22, 2017 | at Union | 33 | Tumwater | 29 | |
| 3 | Oct. 4, 2024 | Tumwater | 56 | at Union | 10 | |