First meeting: Oct. 22, 1999 - Kelso 69, Heritage 6
Latest meeting: Oct. 18, 2024 - Kelso 42, Heritage 13
Next meeting: 2025
Meetings total: 18
All-time series: Kelso Leads 12-6
League series: Kelso Leads 5-3
Post-season series: n/a
Largest victory: Kelso, 69-6 (1999)
Longest win streak: Kelso, 4 (2021-present)
Current win streak: Kelso, 4 (2021-present)
| Heritage Victories | Kelso Victories | Tie Games |
| No. | Date | Winning Team | Losing Team | |||
| 1 | Oct. 22, 1999 | at Kelso* | 69 | Heritage | 6 | |
| 2 | Oct. 21, 2000 | at Heritage* | 34 | Kelso | 31 | |
| 3 | Oct. 5, 2001 | Kelso | 27 | at Heritage | 6 | |
| 4 | Sept. 10, 2004 | Kelso | 34 | at Heritage | 0 | |
| 5 | Sept. 9, 2005 | at Kelso | 21 | Heritage | 14 | |
| 6 | Oct. 17, 2008 | at Heritage* | 42 | Kelso | 13 | |
| 7 | Oct. 16, 2009 | Heritage* | 30 | at Kelso | 29 | |
| 8 | Sept. 7, 2012 | Kelso | 49 | at Heritage | 46 | |
| 9 | Sept.13, 2013 | Heritage | 25 | at Kelso | 7 | |
| 10 | Oct. 24, 2014 | Heritage | 14 | at Kelso | 9 | |
| 11 | Oct. 23, 2015 | Kelso | 26 | at Heritage | 23 | |
| 12 | Sept.14, 2018 | at Kelso | 37 | Heritage | 14 | |
| 13 | Sept. 20, 2019 | Kelso | 41 | at Heritage | 7 | |
| 14 | Mar. 12, 2021 | at Heritage | 30 | Kelso | 17 | |
| 15 | Oct. 22, 2021 | at Kelso* | 56 | Heritage | 12 | |
| 16 | Oct. 7, 2022 | at Kelso* | 48 | Heritage | 0 | |
| 17 | Oct. 6, 2023 | Kelso* | 51 | at Heritage | 0 | |
| 18 | Oct. 18, 2024 | at Kelso* | 42 | Heritage | 13 | |