Boulder Stroke and Stride Series

The Boulder Stroke & Stride enters its 25th season in 2026, 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, hooded sweatshirts for 6-pack entries, and series prizes are just the beginning!