Boulder Stroke & Stride Series #9

The 2025 Boulder Stroke & Stride Series June 5th, June 11th (Wednesday), June 19th, June 26th, July 10th, July 17th, July 24th, July 31st, August 7th ​ The Boulder Stroke & Stride enters its 24th season in 2025, 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!