Boulderthon 2025: The Boulder Marathon
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About
Boulderthon is one of the fastest-growing marathons in the US and was just rated top 10 in America by USA Today and among the Best Fall Marathons by Runners World. They have a 5K, 10K, Half, Full and even a Kids Run and Stroller Race. Register now for the annual sell-out race and experience the magic of Colorado’s premier fall marathon!
**If you've already registered for the Pasta Party with Alexi Pappas, the address is 7220 Jay Rd Boulder, CO
Pasta Party with Alexi Pappas, Presented by INNOVAES, Marathon, Half Marathon, and 3 more
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Sun, Sep 28, 2025
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Boulder, United States
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4.6
(Reviews)
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Where and when
Location
1303 Pearl St, Boulder, CO 80302, USA
Start times
Marathon: 7:00 AMHalf Marathon: 7:00 AM10K Presented by Cheribundi: 7:30 AMHeart to Heart 5K Presented by BCH: 7:45 AMBoulder Country Day School Kids Run: 8:15 AM
Event summary
Here are the distances available for Boulderthon 2025: The Boulder Marathon
Pasta Party with Alexi Pappas, Presented by INNOVAES
$49
Marathon
26.2mi
free
Half Marathon
13.1mi
$190
10K Presented by Cheribundi
10km
$64 - $159
Pasta Party with Alexi Pappas, Presented by INNOVAES
$49
Marathon
26.2mi
free
Half Marathon
13.1mi
$190
10K Presented by Cheribundi
10km
$64 - $159
Route information
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What's included
-
How to get there
Hotels and Accommodation
Find some of the best hotel rates close to the startline with Hotel Planner.
Find your roomEvent day logistics
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Reviews
4.6
24 reviews
Event passed
Results & Photos
33 Broadwick St, London W1F 0DQ
Reg number 10083277
