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.