Boulder Sunset 1OK & 5K Run 


Sunday, August 25th at 8:00am

Boulder Reservoir, Boulder, CO


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.

About the Run

This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam.  There will be opportunities to fuel up at or near each mile marker, preparing you for a slight downhill sprint to the finish! 

Start Time: 8:00am

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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.

Event Day Details

Address Boulder Reservoir

5565 N 51st St. Boulder, CO 80303

Race Day Schedule

6:30am - 8:00am: Packet Pick Up

8:00am: Start of the 10K & 5K

8:45am: 5K Awards Ceremony

9:05am: 10K Awards Ceremony

11:15am: Course Closed

What's Included:

  • Scenic, USATF sanctioned course

  • Early & Race Day Packet Pick Up Options

  • Accurately measured, clearly marked courses

  • Reliable, Accurate Results

  • Post-Race Food

  • Participant Shirt

  • Finisher Medal

  • Goodie Bag

  • Overall Awards

  • Age Group Awards


Past Results

Leave No Trace & Follow Park Rules

  • Zero Waste Event, please recycle!

  • No strollers on the run course

  • No headphones on the run course

  • No dogs at the Boulder Reservoir

  • No glass bottles at the Boulder Reservoir

Contact Us

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