Aug 11, 2026 · 6:00 PM · Bellvue, CO
Into the Hills Eltuck 10k
10Kflat and fast
- Price
- $32.80
- Field size
- 175 · based on the organizer's entry cap
10Ks in Colorado
Every upcoming 10K race we know about in Colorado. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Where
When
Showing 24+ of 86 races · loading the full list…
Aug 15, 2026 · 7:30 AM · Centennial, CO
Run for PB& J 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$48.70
Aug 15, 2026 · 7:30 AM · Centennial, CO
Bagel Run 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$48.70
Aug 15, 2026 · 7:00 AM · Colorado Springs, CO
The Cheyenne Mountain Run
5K10K9,450 ft gain
- Price
- $54-$112.30
Aug 22, 2026 · 8:00 AM · Centennial, CO
2026 True Impact Ministries 5K/10K
5K10K
- Price
- Price on registration site
Aug 23, 2026 · 7:30 AM · Westminster, CO
Pioneer Prairie Dog Half, 10k & 5k
5K10KHalf Marathon
- Price
- $45-$85
- Field size
- 150 · based on the organizer's entry cap
Aug 29, 2026 · 7:30 AM · Centennial, CO
Sloth Run 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$54
Aug 29, 2026 · 7:30 AM · Centennial, CO
Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$54
Sep 5, 2026 · 8:00 AM · Westminster, CO
Golden Harvest Half Marathon & 5k/10k - Denver
1M5K10KHalf Marathon
- Price
- Free-$73.94
Sep 6, 2026 · 8:00 AM · Colorado Springs, CO
Golden Harvest Half Marathon & 5k/10k - Colorado Springs
1M5K10KHalf Marathon
- Price
- Free-$73.94
Sep 7, 2026 · 7:00 AM · Parker, CO
Labor Day Half Marathon
5K10KHalf Marathonflat and fastWalker-friendly · per organizer
- Price
- $37.64-$83
Sep 12, 2026 · 8:00 AM · Buena Vista, CO
Trail Sisters Women's Half Marathon & 10k
10KHalf Marathon
- Price
- $69.90-$107
- Field size
- 394 · based on the organizer's entry cap
Sep 12, 2026 · 7:30 AM · Centennial, CO
National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$48.70
Sep 12, 2026 · 7:30 AM · Centennial, CO
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
1M5K10KHalf Marathon
- Price
- $32.80-$48.70
Sep 19, 2026 · 9:15 AM · Buena Vista, CO
Autumn Run
5K10KHalf Marathon
- Price
- Free-$108.25
- Field size
- 200 · based on the organizer's entry cap