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Boulderthon – Boulder Marathon
Boulderthon – Boulder Marathon
Description
- Location: Boulder, CO, USA
- Race Date: 09/28/2025
- Race Distances: Full Marathon, Half Marathon
Immerse yourself in the vibrant energy and natural beauty of Boulder, Colorado with the Boulderthon – Boulder Marathon. This exciting race showcases the best of Boulder’s picturesque landscapes, from scenic mountain views to charming urban streets. The marathon course takes you through Boulder’s iconic landmarks, including the bustling Pearl Street Mall, the serene Boulder Creek Path, and the stunning backdrop of the Flatirons. Known for its welcoming community and excellent race organization, the Boulderthon offers a supportive atmosphere for runners of all levels. Whether you’re seeking a personal best or simply want to enjoy a memorable race day, the Boulderthon promises a dynamic and inspiring experience in one of Colorado’s most beautiful cities.
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Average Temperature
- Low: 45°F
- High: 72°F
# of Finishers
2,000 to 3,000 Half Marathon
1,000 to 2,000 Marathon
Course Information
Profile: Hilly
Type: Loop
Surface: Road/Pavement
Pace Groups: Yes
Time Limit: Unknown
Elevation Details
Elevation Gain: Unknown
Elevation Loss: Unknown
Qualifying Race For:
Boston: Yes
World Major Qualifier: No
Other Races In Colorado
Boston Qualifier: No
World Major Qualifier: No
Western States 100: No
UTMB Index: No
