Ultra Race USA

Races by State

Disclaimer: Race dates are subject to change. Some events may not yet be confirmed—please verify details on the official race website/registration link.

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Colorado

Race Distance City Date Registration
High Lonesome 100 Winter 100K Boulder 1-24-2026 Register
Fatass 50K 50K Colorado Springs 2-7-2026 Register
Salida Trail Marathon 50K Salida 3-7-2026 Register
Desert Rats Trail Running Festival 50K, 50M, 100K Fruita 4-19-2026 Register
Collegiate Peaks Trail Run 50M Buena Vista 4-25-2026 Register
Quad Rock 50 50M Fort Collins 5-9-2026 Register
Black Hills 100 – Colorado edition 50K+ (check variant) Colorado Springs 5-24-2026 Register
North Fork 50 50M, 50K Pine 6-7-2026 Register
Big Horn Sheep Canyon Races 50K, 50M Canon City 6-14-2026 Register
San Juan Solstice 50M Lake City 6-20-2026 Register
Dirty 30 50K Golden Gate Canyon 6-28-2026 Register
Hardrock Hundred Endurance Run 100M Silverton 7-10-2026 Register
Silverheels 100 100M Fairplay 7-11-2026 Register
Silver Rush 50 50M Leadville 7-12-2026 Register
TransRockies Run 120M (6-day stage) Buena Vista to Beaver Creek 8-9-2026 Register
Telluride Mountain Run 50M, 100K Telluride 8-15-2026 Register
Leadville Trail 100 100M Leadville 8-22-2026 Register
Pikes Peak Ultra 50M, 50K Colorado Springs 8-22-2026 Register
Never Summer 100K 100K Gould 9-5-2026 Register
Black Hawk 100 100M, 50M Black Hawk 9-12-2026 Register
Indian Creek Fifties 50M, 55K Sedalia 9-13-2026 Register
Autumn Leaves Ultra 50K Denver 9-20-2026 Register
Sangre de Cristo Ultras 200K, 100K, 50K Westcliffe 10-3-2026 Register
Blue Sky Trail Marathon & Ultra 50K Fort Collins 10-4-2026 Register
Run Rabbit Run 100M, 50M Steamboat Springs 10-10-2026 Register
Rim Rock Run Ultra 50K Grand Junction 11-8-2026 Register

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