| 2026 | Oct 24, 2026 | Idaho State 38, Portland State 8 | Holt Arena · Pocatello, ID |
| 2024 | Oct 12, 2024 | Portland State 42, Idaho State 38 | Holt Arena · Pocatello, ID |
| 2023 | Oct 21, 2023 | Idaho State 38, Portland State 24 | Hillsboro Stadium · Portland, OR |
| 2021 | Oct 16, 2021 | Portland State 31, Idaho State 10 | Hillsboro Stadium · Portland, OR |
| 2019 | Sep 28, 2019 | Idaho State 51, Portland State 24 | Holt Arena · Pocatello, ID |
| 2018 | Nov 3, 2018 | Idaho State 48, Portland State 45 | Hillsboro Stadium · Portland, OR |
| 2017 | Oct 21, 2017 | Idaho State 59, Portland State 30 | Holt Arena · Pocatello, ID |
| 2016 | Oct 1, 2016 | Portland State 45, Idaho State 20 | Providence Park · Portland, OR |
| 2015 | Sep 12, 2015 | Portland State 34, Idaho State 14 | Holt Arena · Pocatello, ID |
| 2014 | Nov 1, 2014 | Idaho State 31, Portland State 13 | Providence Park · Portland, OR · Neutral |
| 2013 | Nov 9, 2013 | Portland State 38, Idaho State 31 | Holt Arena · Pocatello, ID |
| 2011 | Oct 1, 2011 | Portland State 42, Idaho State 35 | Holt Arena · Pocatello, ID |
| 2010 | Oct 3, 2010 | Portland State 38, Idaho State 3 | – |
| 2009 | Nov 14, 2009 | Idaho State 41, Portland State 34 | Holt Arena · Pocatello, ID |
| 2008 | Oct 25, 2008 | Portland State 36, Idaho State 13 | – |
| 2007 | Oct 20, 2007 | Idaho State 38, Portland State 20 | Holt Arena · Pocatello, ID |
| 2006 | Oct 15, 2006 | Portland State 34, Idaho State 13 | – |
| 2005 | Nov 5, 2005 | Idaho State 36, Portland State 34 | Holt Arena · Pocatello, ID |
| 2004 | Nov 6, 2004 | Portland State 42, Idaho State 21 | – |
