Girls on the Run Rockies Boulderthon SoleMates
About this race
Sunday, September 27, 2026; Boulder, Colorado
As a SoleMate, you will be running the Boulderthon marathon while raising funds to support Girls on the Run of the Rockies. And we will be here to support you from start to finish! Here are some of the perks to being a Girls on the Run Boulderthon SoleMate:
- We help you create a turnkey fundraising page
- We provide you with a fundraising toolkit, making outreach easy
- A SoleMates tank or t-shirt (once you reach your $1000 fundraising goal)
All SoleMates running as an individual are required to raise a minimum of $1000 for Girls on the Run of the Rockies.
If you have already registered for Boulderthon, we will apply your registration fee towards your fundraising minimum.
Pick your distance
Running
Boulderthon Full Marathon
Boulderthon 1/2 Marathon
Boulderthon 10K
Typical race-day weather
Based on 5 years of Open-Meteo archive data for this event's race dates in Boulder, plus the 3 days either side.
The sun rises at 6:53 AM and sets at 6:50 PM local time (MDT) in Boulder on September 27, 2026 — 11h 56m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Other races near Boulder
Different organizers, within 40 miles, in the next three months
Fall Skyline Traverse
Alpine Bank Boulder Thanksgiving Day 5K
Hands & Voices New Year Virtual 5K: Trails to the Summit
Boulder XC Series Meet 1
🏃 Plan Your Next Race in Boulder
Find upcoming events by distance:
- Boulder 5K Races 13 races
- 10K Run Events in Boulder 2 races
- Boulder Half Marathons 2 races
- Boulder Running Calendar 2026 25 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 28 Boulder events
Spotted something wrong? Tell us and we'll fix it.