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Fall trail races near Denver (2026)
Updated
13 trail races are on the calendar near Denver in fall 2026, starting with Indian Creek Trail Runs on Saturday, October 17 in Sedalia. That covers September to November. 4 of them publish an upcoming price increase, so signing up early saves money.
All fall races5K races (45)10K races (16)Half marathons (11)Trail races (13)
By date
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from $60
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from $35
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The Great Trailhead Foot Race 5 & 10 Miler
Sat Oct 17 · 9:00 AM · Lakewood · Denver
5 miles10 milesTrail
Reg. closed -
Reg. closed
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from $25
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McGraw Memorial Park "Quick Draw @ McGraw" 2.1 & 12.6 Mile Trail Races
Sat Oct 24 · 10:00 AM · Bailey · Foothills & Mountains
2 miles12.6 milesTrail
from $35 -
from $15
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Hrca Backcountry Wilderness Half Marathon
Sat Oct 31 · 9:00 AM · Lone Tree · Denver Suburbs
Half marathonTrail
from $85Goes up Oct 27 -
from $50Goes up Oct 19
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Turkey Trails- Denver
Sat Nov 7 · 8:00 AM · Littleton · Denver Suburbs
1 mile5K10KHalf marathonTrail
from $22Goes up Oct 19 -
from $45
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Colorado State Youth Cross Country Championships
Sat Nov 14 · 9:40 AM · Aurora · Denver Suburbs
1.24 miles1.86 miles2.48 milesTrail
from $25.99 -
from $40Goes up Nov 11
Other seasons near Denver
Quick answers
How many trail races are near Denver in fall 2026?
13 trail races are listed near Denver in fall 2026. The first is Indian Creek Trail Runs on Saturday, October 17 in Sedalia, and the last is The Pilgrimage Run on November 26.
What is the cheapest trail race near Denver in fall 2026?
Colleen De Reuck XC Classic on October 31 has the lowest listed entry fee: $15. Prices are before the registration platform's processing fee.
When does the next early-bird price end for trail races near Denver?
All-Out Kooky-Spooky: the Half marathon goes from $80 to $85 after October 19. 3 more of these trail races publish a later price increase.
Are there half marathons or marathons near Denver in fall 2026?
Yes: 3 half marathons and 0 marathons. The first is Hrca Backcountry Wilderness Half Marathon on October 31.