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Colorado Running Calendar 2026-2027

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Monthly updates for Colorado

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

Explore the best running races in Colorado for 2026-2027! Our updated list features 491 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons Walking Events
January 2027
Jan
2
Sa

YMCA of Pueblo Hot Chocolate 5K

5 km
Jan
9
Sa

Polar Prowl

5 km 10 km 13 mi
Jan
16
Sa

The Best Races - Foxfield

Road Race Walk 5 km 10 km 13 mi
Jan
30
Sa

The Best Races - Foxfield

Road Race Walk 5 km 10 km 13 mi
February 2027
Feb
6
Sa

Mardi Crawl

5 km 10 km 13 mi
Feb
6-7
Sa - Su

Stories Trail Runs

Trail Run 10 km Half Marathon 20 mi
Feb
13
Sa

Heart Throb 5K

5 km
Feb
13
Sa

The Best Races - Foxfield

Road Race Walk 5 km 10 km 13 mi
Feb
14
Su

Super Half Marathon

3 mi 13 mi
Feb
28
Su

Highlands Ranch 5k

3 mi
March 2027
Mar
13
Sa

Erin Go Bragh 7.77k

8 km
Mar
13
Sa

Run Through Time Trail Marathon

Trail Run 2 mi 13 mi 26 mi
Mar
14
Su

Lucky Brew Race Half Marathon

Road Race Walk 5 km 10 km 15 km Half Marathon
Mar
21
Su

All-Out Spring Fever

5 km 10 km 13 mi
Mar
28
Su

Central Park 5k

Road Race Walk 3 mi
April 2027
Apr
3
Sa

Imperial Challenge

Multisport
Apr
4
Su

Donut Dash - Denver

Road Race Walk 5 km
Apr
8
Th

Desert Rats Trail Running Festival

Trail Run 9 km Half Marathon 48 km 100 km
Apr
11
Su

Platte River Half-Marathon

5 km 13 mi
Apr
11
Su

NoCo Urban Ultra

Trail Run 50 mi 100 mi
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