Boulder Rez 3/4 Marathon

When
Sat, Aug 15, 2026, 12:00 AM
Where
Boulder, US
Distances
10K · Half Marathon · Marathon
Terrain
TRAIL
Price
50–160 USD
Elevation gain
61 m
Typical weather
Mild
Organizer
BBSC Endurance Sports

About

A 10km loop around Boulder Reservoir held primarily on dirt roads and packed trails with a mostly flat profile and roughly 61 m of total gain. The course highlights scenic Rocky Mountain views and spectator-friendly stretches. Race logistics include packet pickup options, aid stations stocked with water and Gatorade, and volunteer support.

Races