Sat, Jun 19, 2027 · 8:00 AM · Thornton, CO
Unicorn 5k (North)
1K5K
- Price
- $22-$44
- Field size
- 250 · basis unavailable
Running races in Colorado — Page 4
Upcoming running races in Colorado. We show what's actually known about each one and mark the rest as unknown.
Race results
Showing 181–221 of 221 races. Use search and filters from page 1.
Sat, Jun 19, 2027 · 7:00 AM · Centennial, CO
Run Juneteenth Day 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$48.70
Sat, Jun 19, 2027 · 8:30 AM · Windsor, CO
Red, White and Brew 5k, 10k & Half Marathon
1M5K10KHalf Marathon
- Price
- $20.08-$73.08
Sun, Jun 20, 2027 · 7:00 AM · Colorado Springs, CO
Treat Trot Colorado Springs
1M5K10K15K
- Price
- $20.83-$34.28
Fri, Jun 25, 2027 · 1:30 PM · Alma, CO
Race in the Clouds - Alma Dirt Festival 2027
10KHalf Marathon22MMarathonUltra2,600 ft gain
- Price
- $43.40-$69.90
Sat, Jul 10, 2027 · 8:00 AM · Denver, CO
Cookie Chase
5Kflat and fastWalker-friendly · per organizer
- Price
- $34.40
Sat, Jul 17, 2027 · 7:00 AM · Denver, CO
Heatwave Half Marathon/5K/10K - Denver
1M5K10KHalf Marathon
- Price
- Free-$59.10
Sat, Jul 17, 2027 · 6:30 AM · Castle Rock, CO
Summer Splash Prairie Dog Half, 10k, & 5k
5K10KHalf Marathon
- Price
- $39-$74
- Field size
- 222 · based on the organizer's entry cap
Sun, Jul 18, 2027 · 7:00 AM · Colorado Springs, CO
Heatwave Half Marathon/5K/10K - Colorado Springs
1M5K10KHalf Marathon
- Price
- Free-$46.28
Sun, Jul 25, 2027 · 7:00 AM · Golden, CO
Spirit of the West 5K Run/Walk
5Khilly
- Price
- $35
- Field size
- 500 · based on the organizer's entry cap
Sat, Aug 7, 2027 · 8:00 AM · Highlands Ranch, CO
Unicorn 5k (South)
5K
- Price
- $22-$44
- Field size
- 277 · based on the organizer's entry cap
Sun, Aug 8, 2027 · 7:00 AM · Colorado Springs, CO
Summer Sizzler- Colorado Springs
1M5K10K15K
- Price
- $20.83-$34.28
Sat, Aug 21, 2027 · 8:00 AM · Fraser, CO
Byers Peak Stampede Half Marathon & 5K Run
3MHalf Marathon
- Price
- $48.70-$69.90
Sun, Aug 22, 2027 · 7:15 AM · Westminster, CO
Pioneer Prairie Dog Half, 10k & 5k
5K10KHalf Marathon
- Price
- $39-$74
- Field size
- 111 · based on the organizer's entry cap
Tue, Sep 7, 2027 · 9:00 AM · Grand Junction, CO
Spirit of the Valley 5k
1K5KWalker-friendly · per organizer
- Price
- $11.60-$27.50
Fri, Sep 10, 2027 · 5:00 AM · Idaho Springs, CO
Flaming Foliage Relay - Idaho Springs to Buena Vista
Ultra
- Price
- Price on registration site
Sat, Sep 11, 2027 · 8:00 AM · Denver, CO
Golden Harvest Half Marathon & 5K/10K - Denver
1M5K10KHalf Marathon
- Price
- Free-$59.10
Sun, Sep 12, 2027 · 8:00 AM · Colorado Springs, CO
Golden Harvest Half Marathon & 5K/10K - Colorado Springs
1M5K10KHalf Marathon
- Price
- Free-$46.28
Sat, Oct 2, 2027 · 9:00 AM · Westminster, CO
Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO
5K10K
- Price
- $10-$40
Sat, Oct 2, 2027 · 7:00 AM · Colorado Springs, CO
Colorado Springs Marathon, Half, 5K, and Kids K
1K5KHalf MarathonMarathon
- Price
- Free-$81.66
- Field size
- 20 · based on the organizer's entry cap
Sun, Oct 17, 2027 · 8:00 AM · Colorado Springs, CO
Running Scared 5K/13K - Colorado Springs
5K13K18K
- Price
- $23.60-$54.10