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.

Race Venue

Boulder Reservoir

5565 N 51st St. Boulder, CO 80303

Parking

Athletes and spectators must park in the gravel lot adjacent from the paved parking area. Please follow parking attendants, directing traffic inside the park.

Race Distances

5K Course

8:00am Start

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!

10K Course

8:00am Start

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!

Event Schedule

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

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.