Mainly Marathons Center of the Nation Series - Day 1
Cheyenne, Wyoming, United States
Sep 28, 2026 - Monday
5k, 10k, 50k, Half-marathon, Marathon, Ultra
Race Information
Center of the Nation Series is organized by Mainly Marathons, one of the largest race organizers in the US, with races in all 50 states. You can participate in one race or take the challenge to complete the whole series!
Mainly Marathons races are designed for runners who run long and run often. All finishers in races longer than half marathon get a custom metal-stamped nameplate!
Related Events
Mainly Marathons Center of the Nation Series - Day 1
Date: Sep 28, 2026 - Monday
Size: 1 - 100 participants
Location: Cheyenne, Wyoming
Mainly Marathons Center of the Nation Series - Day 2
Date: Sep 29, 2026 - Tuesday
Size: 1 - 100 participants
Location: Sterling, Colorado
Mainly Marathons Center of the Nation Series - Day 3
Date: Sep 30, 2026 - Wednesday
Size: 1 - 100 participants
Location: Chadron, Nebraska
Mainly Marathons Center of the Nation Series - Day 4
Date: Oct 1, 2026 - Thursday
Size: 1 - 100 participants
Location: Belle Fourche, South Dakota
Mainly Marathons Center of the Nation Series - Day 5
Date: Oct 2, 2026 - Friday
Size: 1 - 100 participants
Location: Bowman, North Dakota
Mainly Marathons Center of the Nation Series - Day 6
Date: Oct 3, 2026 - Saturday
Size: 1 - 100 participants
Location: Baker, Montana
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Race Facts
Race Size: 1 - 100
Elevation: Fast and Flat
Course Type: Trail
Boston Qualifier: No
Kids Run: No
Where to Stay
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