Trail Running Calendar near Parker 2026-2027

October 2026

Trail Run 6 mi 15 mi 35 mi 54 mi

Indian Creek Trail Runs in Sedalia, Colorado on October 17, 2026 offers multiple trail and ultra distances through montane forests, aspen groves, red rock formations and prairie vistas with city views from several viewpoints.

Oct

17

Sa

The Great Trailhead Foot Race 10 Miler

Lakewood | 21 mi from Parker

Trail Run 5 mi 10 mi

Trail races at Bear Creek Lake Park offering 5 miles or a two-lap 10 miles on single-track dirt. Registration includes park admission, a finisher meal and refreshments; 10 mile finishers receive a commemorative mug.

Oct

25

Su

Beware The Bear Trail Races

Morrison | 25 mi from Parker

Trail Run 5 km 15 km 20 km

Trail races at Bear Creek Lake Park on Oct 25, 2026, featuring 5K, 15K, a double combining 5K and 15K, and a kids 1K.

November 2026

Nov

7

Sa

HRCA Backcountry Wilderness Half Marathon

Highlands Ranch | 11 mi from Parker

Trail Run 13 mi

Experience 13.1 miles of singletrack trails and hills in the Highlands Ranch Backcountry Wilderness Area. Enjoy custom medals and a post race pancake breakfast while competing for cash prizes in various categories.

December 2026

Dec

5

Sa

Sawmill Trail Runs

Conifer | 29 mi from Parker

Trail Run 50 km

May 2027

May

1

Sa

Greenland Trail Races

Larkspur | 21 mi from Parker

Trail Run 4 mi 8 mi 25 km 50 km

Trail races at Greenland Open Space near Larkspur offer four dirt-trail distances with looped courses, aid stations, timing, and awards.

June 2027

Jun

26

Sa

Rueter-Hess Trail Run

Parker

Trail Run 10 km

A trail event near Parker Colorado featuring a 10k with a stepped incline, a kids one mile on the same start, age and gender based staggered starts, aid stations on the loop, and volunteer entry options.