Barr Lake Trail Race

JUN
13
2026
Scenic dirt trails around Barr Lake offer looped courses with continuous lake and front range views. Distances from 5K to 50K suit beginners to ultrarunners, with aid stations on longer routes and a cupless sustainability focus.
Sat 13 Jun 2026
50 kilometers 30 kilometers Half Marathon 15 kilometers 5 kilometers

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Barr Lake Trail Race : June 13, 2026

The Barr Lake Trail Race takes place at Barr Lake State Park (Visitors Center), 13401 Picadily Rd., Brighton, CO. The event offers five distances on primarily dirt trails around Barr Lake, with looped courses for most distances and continuous lake and front range views. Course terrain is listed as 100% dirt and parking is at the lot next to the staging area. The event uses a cupless format with reusable cups available for purchase or to bring from home.

Course details and support

  • 50K - 31.6 miles; 3x loop; ~460 ft total elevation gain; 3 aid stations; 9-hour limit.
  • 30K - 18.2 miles; 2x loop; ~380 ft total elevation gain; 3 aid stations; ~8-hour limit.
  • Half Marathon - 13.1 miles; 2x loop; ~187 ft total elevation gain; 3 aid stations; ~8-hour limit.
  • 15K - 9.1 miles; 1x loop; ~190 ft total elevation gain; 1 aid station; 7-hour limit.
  • 5K - 3.3 miles; out-and-back; ~40 ft total elevation gain; 0 aid stations; ~6-hour limit.

Crews may support runners at the finish line; pacers are not permitted. Drop bags are allowed at a designated start/finish area. Registration closes Monday, June 8 (11:59 PM MT). Volunteer roles are available and include race credits and event swag. Visit the organization's website for the most recent information.

50 km
50k
30 km
30k
Half Marathon
Half Marathon
15 km
15k
5 km