Wyoming Half Marathons
Official Walker Friendly Half Marathons in Wyoming
18:32 mile / 4 Hour Minimum course time limit= (W)
Symbol only applies to half marathon events
Does NOT meet the Walker Friendly 4 hour minimum (18:32 / mi) = Not Walker Friendly (NWF)
Trail Half Marathons (T)
Date
Location
No Wyoming Half Marathons 2026 in January at this time
No Wyoming Half Marathons 2026 in February at this time
No Wyoming Half Marathons 2026 in March at this time
No Wyoming Half Marathons 2026 in April at this time
Sun May 25. 2025
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Sun May 25, 2025
Jackson Hole, WY
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Laramie, WY
Sat Jun 6, 2026 (W)
Sun Jun 1, 2025
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Fri Jun 6, 2025 (W)
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Sat Jun 14, 2025 (W)
Vacation Races Grand Teton Half Marathon
Casper Marathon, Half Marathon & Relay
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Bear Lake Marathon & Half Marathon Trifecta - Wyoming
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Fri Jul 4, 2025
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Sat Jul 12, 2025
Sat Jul 12, 2025
Challenge for Charities Lander Half Marathon, 5k & Kids 1mi
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Beartooth Run Half Marathon, 10k, 5k (over 10,500k ft elevation)
Jackson, WY
Casper, WY
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Garden City, WY
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Evanston, WY
Lander, WY
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Cody, WY
Thayne, WY
Sat Aug 9, 2025
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Sat Aug 16, 2025
Laramie, WY
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Green River, WY
Sun Sep 7, 2025 (W)
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Sat Sep 13, 2025 (W)
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Sat Sep 20, 2025
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Sat Sep 20, 2025
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Sat Sep 27, 2025
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Mon Sep 29, 2025
T-Bird Trek Half Marathon, 10k, 5k
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Buffalo Bill Cody Races Half Marathon & 10k 2024 Registration
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Wolf Creek Wrangle Half Marathon, 10k, 5k
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Pinedale Race to Rai$e Half Marathon, 10k, 5k, 1mi
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Jackson Hole Marathon & Hole Half Marathon 2025 Registration
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Casper, WY
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Cody, WY
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Sheridan, WY
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Pinedale, WY
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Jackson Hole, WY
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Sundance, WY
No Wyoming Half Marathons 2025 in November at this time
No Wyoming Half Marathons 2025 in December at this time
Wyoming Half Marathon Calendar event dates in grey are delinquent dates not updated by the race organizer yet. We strive to have dates 1 year out for Wyoming half marathons, but have no control of when they set, announce or update their dates.
Wyoming half marathons 2025
Wyoming Half Marathons
The Wyoming Half Marathon Calendar is a complete simplistic listing of Wyoming half marathons. Currently the Wyoming half marathon schedule has 2025 Wyoming half marathons and 2026 Wyoming half marathons as they roll in. Wyoming half marathons 2025 & Wyoming half marathons 2026 also identify trail half marathons and walker friendly half marathons by a (T) symbol and a (W) symbol. The (T) means it is a TRUE trail half marathon 21k (off road, switchbacks, etc) and a (W) means it is truly "official walker friendly" requiring the half marathon to allow a minimum of 18:32 mile pace, minimum 4 hours for participants to finish the 13.1 mile distance.
The Wyoming half marathon calendar features a complete listing of Jackson half marathons, Laramie half marathons, Casper half marathons, Worland half marathons, Jackson Hole half marathons, Mountain View half marathons, Lander half marathons, Thayne half marathons, Green River half marathons, Wilson half marathons, Pinedale half marathons, and all other 1/2 marathons in WY.