Ironman 70.3 Boulder

5565 51st St
40.0669° N, -105.2733° W
Ticket price
$~400 entry (athletes)
5565 51st St
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IRONMAN 70.3 Boulder: Endurance Triathlon in Scenic Colorado Landscape

Register now for Ironman 70.3 Boulder and book your stay near the historic Boulder Reservoir to experience endurance and scenic beauty.

Start date
13 June, 2026 7:00 AM
End date
13 June, 2026 3:00 PM

Event details

On June thirteenth, two thousand twenty-six, Boulder, Colorado, will host the IRONMAN 70.3 Boulder, a thrilling triathlon that combines a 1.2-mile swim in the Boulder Reservoir’s clear waters, a 56-mile bike ride through the rolling terrain of Boulder County, and a 13.1-mile run showcasing the area’s natural splendor. This event is perfect for families, couples, pet lovers, and friend groups seeking adventure and togetherness.

Beyond the race, Boulder offers a variety of activities to enhance your visit. Explore the vibrant Pearl Street Mall, a four-block pedestrian area filled with local shops, restaurants, and street performers. Families can enjoy the pop jet fountain in front of the courthouse, where children can play in the water while parents relax nearby. For pet lovers, the Big Boulder Dog Walk at Cottonwood Trail offers a free 2.4-mile walk with treats and goodies for participating pups.

To make the most of your experience, consider booking nearby lodging on Lake.com. Remember to bring picnic blankets, folding chairs, and sunscreen to ensure a comfortable and enjoyable day. Ready to make some lakeside memories? Start planning your stay now on Lake.com.

Event Type and Audience

Competition All Ages
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Where to stay

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