Running Race Calendar in Colorado, United States

Santa's Dash for Ca$h

Denver, Colorado, United States

Dec 19, 2026 (Sat)

$37.00

Running

5K

New Year's Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States

Dec 26, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

Dec 26, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

James Pre-Paid Teams Test

Lyons, Colorado, United States

Dec 31, 2026 (Thu)

$10.00 - $50.00

Running

12K

Hands & Voices New Year Virtual 5K: Trails to the Summit

Boulder, Colorado, United States

Dec 31, 2026 (Thu) – Jan 3, 2027

$25.00

Running

5K

Resolution Run - Fort Collins

Fort Collins, Colorado, United States

Dec 31, 2026 (Thu)

$25.00

Running

5K

Resolute Runner 5k

Arvada, Colorado, United States

Jan 1, 2027 (Fri)

$34.00

Running

5K

Ymca of Pueblo Hot Chocolate 5K

Pueblo, Colorado, United States

Jan 2, 2027 (Sat)

$30.00

Running

5K

All-Out Polar Prowl

Arvada, Colorado, United States

Jan 9, 2027 (Sat)

$25.00 - $70.00

Running

Half-Marathon 10K 5K +2

Mlk Jr. Freedom Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States

Jan 16, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Run for Donut Denver/Aurora

Centennial, Colorado, United States

Jan 30, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Coffee Lover Run Denver/Aurora

Centennial, Colorado, United States

Jan 30, 2027 (Sat) – Apr 24, 2027

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8