701 runs, swims, rides and races in Colorado

From city marathons to local trail runs—find running, cycling, triathlon, and swimming events in cities and communities throughout Colorado.

• Adams County (2)
• Alamosa (2)
• Archuleta County (2)
• Arvada (16)
• Aspen (12)
• Aurora (17)
• Bailey (1)
• Berthoud (2)
• Boulder (16)
• Boulder County (7)
• Breckenridge (4)
• Brighton (4)
• Broomfield (2)
• Buena Vista (10)
• Carbondale (2)
• Castle Pines (2)
• Castle Rock (4)
• Cañon City (5)
• Centennial (42)
• Center (1)
• Chaffee County (1)
• Clear Creek County (3)
• Colorado Springs (89)
• Commerce City (1)
• Conejos County (1)
• Cortez (2)
• Craig (4)
• Crested Butte (4)
• Custer County (1)
• Delta County (1)
• Denver (50)
• Douglas County (14)
• Durango (11)
• Eagle County (1)
• El Paso County (16)
• Englewood (2)
• Erie (3)
• Estes Park (9)
• Evergreen (3)
• Fairplay (3)
• Fort Carson (2)
• Fort Collins (23)
• Fort Morgan (1)
• Fountain (1)
• Frederick (3)
• Fremont County (2)
• Frisco (3)
• Fruita (5)
• Gilpin County (2)
• Glenwood Springs (3)
• Golden (6)
• Granby (1)
• Grand County (6)
• Grand Junction (6)
• Greeley (3)
• Greenwood Village (3)
• Gunnison (2)
• Gunnison County (5)
• Highlands Ranch (8)
• Huerfano County (1)
• Idaho Springs (5)
• Jackson County (1)
• Jefferson County (6)
• Johnstown (1)
• Kremmling (1)
• La Plata County (3)
• Lake City (2)
• Lake County (2)
• Lakewood (5)
• Larimer County (18)
• Leadville (9)
• Littleton (13)
• Longmont (7)
• Louisville (7)
• Loveland (13)
• Meeker (1)
• Mesa County (8)
• Mineral County (3)
• Moffat County (1)
• Montezuma County (1)
• Montrose (1)
• Montrose County (1)
• Monument (1)
• Nederland (1)
• Olathe (1)
• Ouray County (8)
• Pagosa Springs (1)
• Palisade (3)
• Parachute (1)
• Park County (7)
• Parker (6)
• Pitkin County (5)
• Pueblo (7)
• Pueblo County (2)
• Rifle (1)
• Rio Grande County (1)
• Routt County (4)
• Saguache (1)
• Salida (4)
• San Juan County (6)
• San Miguel County (1)
• Severance (3)
• Silt (1)
• Silverthorne (1)
• Steamboat Springs (16)
• Summit County (2)
• Superior (1)
• Teller County (3)
• Telluride (7)
• Thornton (9)
• Vail (5)
• Westminster (13)
• Wheat Ridge (2)
• Windsor (6)
• Woodland Park (4)

Regional Clubs & Organizations