The 2021 Boulder Stroke & Stride Series

June 2nd, June 9th, June 16th, June 23rd, July 7th, July 14th, July 21st, July 28th, and Wednesday August 3rd

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Note for 2022: 6-pack entries, limited to 150, are sold out for the summer - single night registrations are available.

The Boulder Stroke & Stride enters its 21st season in 2022, 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 8 Thursday evenings (plus one Wednesday evening) throughout the summer. Many participants make their open-water swimming debut in the beginner-friendly Stroke & Stride 750 meter event, while more seasoned athletes get the thrill of starting alongside some of the top athletes in the world in the 1,500 meter swim. 250-400 participants enjoy the Stroke & Stride every week!  Live timing, great post race food, beanie for 6-pack entries, and series prizes are just the beginning!