Skip to main content
Cart reserved for
·
Add time
Reservation time exceeded
Please start over to begin a new reservation.
Start over
RACES
INFO
RESULTS
TRAINING
TRAVEL
VOLUNTEER
ABOUT
MERCH
TEAMS
RESIDENTS
RACES
01
COURSE MAPS
02
MARATHON
03
HALF MARATHON
04
10K PRESENTED BY CHERIBUNDI
05
HEART TO HEART 5K BY BCH
06
BOULDER COUNTRY DAY SCHOOL KIDS RUN
INFO
01
EXPO by INNOVAES
02
START TIMES, WAVES, & LOCATIONS
03
VIP BY LULULEMON
04
COURSE ENTERTAINMENT PRESENTED BY XCEL
05
FINAL 40 FINISHERS
06
AFTER PARTY PRESENTED BY ATHLETIC BREWING
07
PACING
08
DOWNTOWN ACCESS MAP
09
RACE WEEK SCHEDULE
10
ELITE
RESULTS
01
AWARDS + PRIZES
02
RESULTS + PHOTOS
03
STREAKERS
04
LIVE TRACKING
TRAINING
01
Boulderthon x Runna
02
RUN CLUBS
TRAVEL
01
FLY FREE WITH FRONTIER
02
GETTING THERE
03
HOTELS
04
RESTAURANT GUIDE PRESENTED BY UBER EATS
VOLUNTEER
01
SIGN UP TO VOLUNTEER
02
TOM WATSON PARK ADOPTION
ABOUT
01
ABOUT US
02
HISTORY
03
RUNNER EXPERIENCE ADVISORY BOARD
04
PARTNER
05
SUSTAINABILITY AT BOULDERTHON
06
PRESS
07
REVIEWS
MERCH
TEAMS
01
CORPORATE TEAMS
02
5K TEAM CHALLENGE
03
RUN FOR CHARITY
RESIDENTS
●
TICKETS
EXTRAS
Race Date: September 27th, 2026
Register Now