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| Year | Class 4A | Time | Class 3A | Time |
| 2025 | Sheridan | 8:09.48 | Buffalo | 8:18.55 |
| 2024 | Cheyenne Central | 8:15.86 | Star Valley | 8:25.70 |
| 2023 | Natrona | 8:22.65 | Star Valley | 8:35.90 |
| 2022 | Cheyenne Central | 8:12.80 | | |
| 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 | | |