Upcoming Marathon Events in Colorado, United States

APR
25
2026
2026 Cheyenne Mountain Trail Race
📍 Colorado Springs, United States
🏃‍♂️ Trail
📏 4 miles, 7 miles, 25 km, 50 km
APR
25
2026
2026 Falcon 50
📍 Colorado Springs, United States
🏃‍♂️ Trail
📏 21 km, 42 km, 50 miles
APR
25
2026
2026 Royal Gorge Groove
📍 Cañon City, United States
🏃‍♂️ Trail
📏 5 km, 12.5 km, 20 km, 30 km, 50 km
MAY
2
2026
2026 Sunrise Marathon Denver/Aurora
📍 Centennial, United States
🏃‍♂️ Road
📏 1 miles, 5 km, 10 km, 13.1 miles
MAY
3
2026
2026 Colorado Marathon
📍 Poudre Canyon & Fort Collins, United States
🏃‍♂️ Road
📏 5 km, 10 km, 21 km, 42 km
MAY
3
2026
Longmont Half and 5K 2026
📍 Longmont, United States
🏃‍♂️ Road
📏 5 km, 13.1 miles
MAY
9
2026
2026 Valkyrie Trail Race
📍 Colorado Springs, United States
🏃‍♂️ Trail
📏 4 miles, 8 miles, 21 km, 30 km, 42 km, 50 km
MAY
17
2026
2026 Denver Colfax Marathon
📍 DENVER, United States
🏃‍♂️ Road
📏 5 km, 10mi, 21 km, 42 km
MAY
30
2026
North Fork 50 Mile/50K 2026
📍 Buffalo Creek, United States
🏃‍♂️ Trail
📏 50 miles, 50 km
JUN
6
2026
Steamworks Half Marathon 2026
📍 Durango, United States
🏃‍♂️ Road
📏 13.1 miles
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