First meeting: Sept. 26, 2008 - Union 49, Heritage 28
Latest meeting: Sept. 17, 2021 - Union 68, Heritage 7
Next meeting: TBD
Meetings total: 14
All-time series: Union Leads 14-0
League series: Union Leads 10-0
Post-season series: n/a
Largest victory: Union, 68-7 (2021)
Longest win streak: Union, 4 (2008-present)
Current win streak: Union, 4 (2008-present)
| Heritage Victories | Union Victories | Tie Games |
| No. | Date | Winning Team | Losing Team | |||
| 1 | Sept. 26, 2008 | Union | 49 | at Heritage | 28 | |
| 2 | Sept. 25, 2009 | at Union | 56 | Heritage | 13 | |
| 3 | Oct. 8, 2010 | Union* | 56 | at Heritage | 14 | |
| 4 | Oct. 7, 2011 | at Union* | 41 | Heritage | 10 | |
| 5 | Sept. 28, 2012 | Union* | 56 | at Heritage | 19 | |
| 6 | Oct. 4, 2013 | at Union* | 41 | Heritage | 0 | |
| 7 | Oct. 10, 2014 | Union* | 42 | at Heritage | 14 | |
| 8 | Oct. 9, 2015 | at Union* | 35 | Heritage | 29 | |
| 9 | Sept. 30, 2016 | at Union* | 27 | Heritage | 0 | |
| 10 | Sept. 29, 2017 | Union* | 56 | at Heritage | 6 | |
| 11 | Oct. 11, 2018 | Union* | 34 | at Heritage | 0 | |
| 12 | Oct. 18, 2019 | at Union* | 56 | Heritage | 7 | |
| 13 | Mar. 18, 2021 | at Union | 57 | Heritage | 21 | |
| 14 | Sept. 17, 2021 | at Union | 68 | Heritage | 7 | |