July 18, 7:30AM

Boulder Reservoir

The Boulder Stroke & Stride enters its 18th season in 2019 and offers Boulder area athletes a fun 1-lap 750 Meter Swim, or 2-Lap 1500 Meter swim in Boulder Reservoir, followed by a 5k run on the reservoir dam on 9 Thursday evenings throughout the summer.  Live timing, great post-race food, beanie for 6-pack entries, and series prizes are just the beginning!