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Trail Running Calendar near Littleton 2026-2027

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Explore the top trail runs near Littleton for 2026-2027! We've gathered 28 exciting races in the area. Check out our detailed list below to find your next local race.

October 2026
Oct
24
Sa

Quick Draw @ McGraw 2 Mile Trail Race

Trail Run 2 mi 13 mi
Oct
25
Su

Beware The Bear Trail Races

Trail Run 5 km 15 km 20 km
Oct
25
Su

Monsterdash - Louisville

Trail Run 5 km 10 km Half Marathon
Oct
31
Sa

HRCA Backcountry Wilderness Half Marathon

Trail Run 13 mi
November 2026
Nov
7
Sa

Sandstone Sixer

Trail Run Backyard Ultra
Monthly updates for Littleton

Get new running races (and updates) in your inbox every month.
Nov
14
Sa

Louisville Trail Race

Trail Run 5 km 10 km 13 mi
Nov
15
Su

Mountain Peacock 50k

Trail Run 50 km
December 2026
Dec
5
Sa

Sawmill Trail Runs

Trail Run 50 km
Dec
5
Sa

Kingfisher Half Marathon

Trail Run 5 km 10 km Half Marathon
Dec
12
Sa

Santa Claus Run

Trail Run 5 km 10 km Half Marathon
January 2027
Jan
9
Sa

Frozen Devil’s Head

Trail Run 22 mi
March 2027
Mar
20
Sa

Far Out 3/4 Marathon

Trail Run 5 km 10 mi 32 km
April 2027
Apr
3
Sa

Popeye's Backyard Ultra

Trail Run Backyard Ultra 4 mi
Apr
10
Sa

Mountain Ridge Trail Race

Trail Run 3 mi 6 mi 13 mi 22 mi
May 2027
May
1
Sa

Greenland Trail Races

Trail Run 4 mi 8 mi 25 km 50 km
May
1
Sa

Niwot's Challenge

Trail Run 24 mi 50 mi 100 mi
May
30
Su

North Fork 50 Mile

Trail Run 50 km 50 mi
May
30
Su

Rueter-Hess Trail Run

Trail Run 10 km
June 2027
Jun
5
Sa

Barr Lake Trail Race

Trail Run 5 km 15 km ... 30 km 50 km
July 2027
Jul
31
Sa

2 Brothers Up & Down

Trail Run 5 km 10 km
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