About this event
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.
5K Course
7:20am
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
7:20am
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!
Where
When
August 23rd, 2025 @ 7:15am MDT