Boulder Sunset 10K & 5K Run
August 28, 2021
Boulder Reservoir, Boulder, Colorado
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. Register, and start training for the end-of-the-summer endurance festival with BBSC.
5565 N 51st St. Boulder, CO 80303
Athletes and spectators must park in the gravel lot adjacent from the paved parking area. Please follow parking attendants, directing traffic inside the park.
This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam. There will be 2 opportunities to fuel up at or near each mile marker, preparing you for that slight downhill sprint to the finish!
This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam. There will be 6 opportunities to fuel up at or near each mile marker, preparing you for that slight downhill sprint to the finish!
6:30am - 8:00am: Race Day Packet Pick Up
8:00am: Start of the 10K & 5K
9:00am: 5K Awards Ceremony
9:15am: 10K Awards Ceremony
11:15am: Course Closed
Things to Know
Zero Waste Event, please recycle!
No strollers on the run course
No headphones or earbuds allowed
No dogs at the Boulder Reservoir
No glass bottles at the Boulder Reservoir
Aid Stations will be stocked with water and a hydration drink. Fluids will be available in cups, though the aid stations will be happy to refill your own water bottle as well should you chose to carry one.
Scenic, USATF sanctioned course
Early & Race Day Packet Pick Up Options
Accurately measured, clearly marked courses
Reliable, Accurate Results
Finisher Medal & Awards
Digital Goodie Bag
4:00pm - 7:00pm
Boulder Cycle Sport, 4580 North Broadway Suite B, Boulder, CO 80304
2:00pm - 6:00pm
Road Runner Sports Westminster, 10436 Town Center Dr #300, Westminster, CO 80021
Finish Line Area, 5565 N 51st St. Boulder, CO 80301