| Year | School | Time |
|---|---|---|
| 2021 | Sheridan | 8:25.43 |
| 2020 | Star Valley | 8:19.40 |
| 2019 | Star Valley | 8:27.86 |
| 2018 | Star Valley | 8:22.50 |
| 2017 | Star Valley | 8:11.04 |
| 2016 | Cheyenne Central | 8:16.26 |
| 2015 | Laramie | 8:12.58 |
| 2014 | Kelly Walsh | 8:10.57 |
| 2013 | Kelly Walsh | 8:14.11 |
| 2012 | Rock Springs | 8:16.43 |
| 2011 | Laramie | 8:16.21 |
| 2010 | Campbell County | 8:30.73 |
| 2009 | Campbell County | 8:23.98 |
| 2008 | Campbell County | 8:39.23 |
| 2007 | Cheyenne Central | 8:53.58 |
| 2006 | Cheyenne Central | 8:37.20 |