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Stroke & Stride #1

Name: Stroke & Stride #1
Start: 2026-06-04
End: 2026-06-04
Location: Boulder, Colorado

location_city Boulder

location_on Colorado

flag United States

calendar_today 04 Jun, 2026

pool Water sports

language Official Website

About the Event

Kick off the 25th anniversary season of Colorado's premier summer swim-run series at the Boulder Stroke & Stride on Thursday, June 4, 2026. This legendary weekly event is where Boulder's vibrant triathlon community gathers at the scenic Boulder Reservoir, offering a thrilling open-water swim of 750 or 1500 meters followed by a fast 5k run on the reservoir dam. The series opener is the perfect place to make your open-water debut in the friendly 750m event or challenge yourself alongside elite athletes in the competitive 1500m wave. Dive in at 6:00 PM after a free clinic by D3 Multisport coaches, perfecting your technique before the start gun fires. As a special pre-registration-only event with limited space for the first two weeks, securing your spot early is essential to join 250-400 fellow athletes for this iconic summer tradition. Beyond the race, enjoy the fantastic post-race atmosphere with great food, live timing, and the camaraderie that has defined this event for a quarter-century. Whether you're testing the waters for the first time, sharpening your speed week after week, or opting for a six-pack entry to guarantee your spot all season, the Stroke & Stride delivers pure, uncomplicated multisport fun. Mark your calendar for June 4th, feel the unique energy of the season opener, and start your summer of Thursday night racing under the Colorado sky.

Races Offered

1 Mile - Swim ONLY

Jun 04, 2026

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Distance — 1.6K

terrain

Type — Swimming

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155 days remaining

1/2 Mile - Swim ONLY

Jun 04, 2026

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Distance — 0.8K

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Type — Swimming

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155 days remaining

5k - Run ONLY

Jun 04, 2026

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Distance — 5K

terrain

Type — Swimming

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155 days remaining

Long Course - Swim & Run

Jun 04, 2026

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Distance — 6.6K

terrain

Type — Swimming

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155 days remaining

Long Course - Swim & Run

Jun 04, 2026

straighten

Distance — 6.6K

terrain

Type — Swimming

timer

155 days remaining

Short Course - Swim & Run

Jun 04, 2026

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Distance — 5.8K

terrain

Type — Swimming

timer

155 days remaining

Short Course - Swim & Run

Jun 04, 2026

straighten

Distance — 5.8K

terrain

Type — Swimming

timer

155 days remaining

Weather Overview

These values represent the 3-year monthly averages for June in Boulder.

Temp (°C)

Feels Like (°C)

thermostat 12.5° / 27.0°

wb_sunny 10.3° / 24.9°

Wind (km/h)

Humidity (%)

air 7.9 /

water_drop 52.6%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 12.5° / 27.0°

wb_sunny 10.3° / 24.9°

air 7.9 km/h

water_drop 52.6%

About Boulder

Boulder is a college town of about 106,000 in the Front Range region of Colorado. The home of the University of Colorado, the city has a reputation for progressive values and outdoor recreation. It is a very pleasant place to live and visit.