2027 Boulderthon
Expected Race Date
~Oct 2027
Date not yet announced — this is when the race usually runs.
Location
Boulder, CO
Quick facts
- Date
- around October 2027 (expected)
- Location
- Boulder, Colorado
- Distance
- Half marathon (13.1 mi)
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
The Experience
Currency:
$ USD (US Dollars)
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Boulderthon | Sept. 28, 2025 (https://www.brooksee.com/bld)
Questions: [email protected] ([email protected]) Results (https://results.laurelt.com/bld/results) Track a Participant (https://track.brooksee.com/track?h=bld) Live Video Feed (https://vimeo.com/event/5405327/embed) Team Results (https://www.brooksee.com/bld/awardsteam2025?)
View Results/Photos (https://results.laurelt.com/bld/results)
Track Participant (https://track.brooksee.com/track?h=bld)
Team Results (https://results.laurelt.com/bld/results/teams)
Claim Lost Photos (https://results.laurelt.com/bld/photos/claim)
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Gender
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Course Info
Course Type
Loop Course
Terrain
road
Difficulty
Rolling Hills
Quality Score
Solid Pick536 years running
~3,562 finishers a year
growing or steady
11% returning runners
2 timing sources
runners from 1 state
winner 1:06:31
typical high 71°F
Race Day Weather
5-year historical avgStart (Low)
40°
Afternoon (High)
65°
Pleasant conditions — light layers at start, comfortable by finish
0.0"
Precipitation
10 mph
Wind
54%
Humidity
Frequently asked
When is the 2027 Boulderthon?
The 2027 Boulderthon hasn't announced its next date yet, but it typically takes place around October 2027 (expected).
Where does the 2027 Boulderthon take place?
It takes place in Boulder, Colorado.
What distances does the 2027 Boulderthon offer?
The half marathon (13.1 miles).
Is the 2027 Boulderthon course flat and good for a PR?
The 2027 Boulderthon is a rolling hills, loop course course.
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