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Rock Hawk Trail Race

Phillip S. Miller Park 1375 West Plum Creek Pkwy, Castle Rock

Held on the gorgeous, thrilling and rolling trails of Castle Rock’s Miller Park & Ridgeline Trail systems. While not overly technical, these trails will challenge and excite, as you soak […]

Boulder Sunset Triathlon

Boulder Reservoir 5565 N 51st St, Boulder

Summer may be coming to an end, but our tri season is still heating up! Join us at the Boulder Reservoir for the 13th Annual Boulder Sunset Triathlon, a local […]

Boulder Sunset 5K/10K

Boulder Reservoir 5565 N 51st St, Boulder

The Boulder Sunset 10K & 5K Run is part of BBSC’s biggest endurance event of the summer. Spend your weekend racing with BBSC at the incredible and scenic Boulder Reservoir. Register, […]

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