Swimming Events in Boulder

Check out happening swimming events all around Boulder, CO

Harvest Moon Long Course Triathlon

Sun, 31 May at 07:15 am Boulder Reservoir

2026 Boulder Polar Plunge presented by Spectrum

Sat, 04 Apr at 11:00 am Boulder Reservoir

TI Effortless Endurance Freestyle Workshop, Boulder, CO

Sun, 29 Mar at 08:00 am Colorado Athletic Club Flatirons