Course
An out-and-back 5K and 10K from Boulder Reservoir, both starting at 7:20am and crossing the reservoir dam. The course is flat and fast and finishes on a slight downhill. Water and fuel stations sit at two points on the 5K and six on the 10K.
10K10 km
5K5 km
Key dates
- ·RegistrationNot open yet
- ★Race dayAugust 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
The Boulder Sunset 10K & 5K Run is part of BBSC's biggest endurance event of the summer. Spend your weekend racing with BBSC at the incredible and scenic Boulder Reservoir.
Your next race, seen from above.
Save Boulder Sunset 10K & 5K Run to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
Get RunCalendar
Save Boulder Sunset 10K & 5K Run to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
More races in Colorado All ›
-
Byers Peak Stampede Half Marathon & 5K
All-dirt trail through Arapaho National Forest
-
Thirsty 13 Half Marathon
Downhill finish at Ska Brewing in Durango
-
-
Leadville Trail 100
One hundred miles above two miles high in the Rockies
Run this event? Claim it on runcalendar.com
Visit event website ›
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.