Wyoming has 6 active marathons this year. Races are most common in June, August, and May. Course terrain for these courses is most often very hilly or hilly. Typical race day temperatures range from 47°F to 64°F.
Popular races include the Jackson Hole Marathon, Casper Marathon, and Run with the Horses Marathon. 2 certified courses can be great Boston qualifier options. Races with the best Boston qualifying percentages include the Jackson Hole Marathon — 2.5% BQ and Casper Marathon — 2.3% BQ.
| Wyoming Marathons |
Course
|
PR Score
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|---|---|---|---|---|---|---|---|
Wyoming MarathonLaramie, WY05/24/2026 |  Very Hilly 21 Finishers |
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Bear Lake Wyoming MarathonCokeville, WY06/03/2027 |  Hilly41 Finishers |
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Casper MarathonCasper, WY06/06/2027 |  Mostly Flat89 Finishers |
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Med Bow Rail MarathonLaramie, WY08/15/2026 | Hilly36 Finishers |
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Run with the Horses MarathonGreen River, WY08/15/2026 | Very Hilly48 Finishers |
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Jackson Hole MarathonJackson Hole, WY09/25/2027 |  Rolling Hills238 Finishers |
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