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Trail Running Calendar near Broomfield 2026-2027

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Explore the top trail runs near Broomfield for 2026-2027! We've gathered 25 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

September 2027
Sep
18
Sa

All-Out Fall Fest

Road Race Trail Run 5 km 10 km Half Marathon
All-Out Fall Fest on September 18, 2027 at Standley Lake in Westminster CO offers in-person and virtual Half Marathon, 10K, and 5K and benefits BookGive.
Sep
19
Su

Expo Park XC Run

Trail Run 3 km 4 km 5 km
Expo Park XC in Aurora, Colorado is a grass cross country meet featuring creek crossings, bale jumps, and youth races across multiple distances.
October 2027
Oct
2-3
Sa - Su

The Bear Chase

Trail Run 5 km 10 km ... 50 mi 100 km
Trail race festival at Bear Creek Lake Park offering 100K, 50M, 50K, half, 10K and 5K on mostly dirt singletrack with aid stations and drop-bag support.
Oct
16
Sa

The Great Trailhead Foot Race 10 Miler

Trail Run 5 mi 10 mi
Trail race at Bear Creek Lake Park on 10/16/2027 offering 5 and 10 mile courses on single-track and dirt with a post-run party and refreshments.
Oct
31
Su

Beware The Bear Trail Races

Trail Run 5 km 15 km 20 km
Trail races at Bear Creek Lake Park with 5 km, 15 km, a 5+15 double, and a Kids 1 km; mostly dirt single and double track with marked courses and an aid station on the 15 km.
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