EVENTS

September 2025

Sat 13

September 13 @ 8:00 am - 8:30 am

NedNed Trail Fest 2026

Nederland, CO

NedNed Trail Fest
September 12th, 2026
Nederland, CO

$35 – $85

Sun 14

September 14 @ 7:00 am - 8:00 am

Nun Run Half Marathon, 5K & 1 Mile 2025

DeKoevend Park

Nun Run
September 14th, 2025
Littleton, Colorado

$30 – $60

Sun 14

September 14 @ 7:00 am - 8:00 am

Nun Run Half Marathon, 5K & 1 Mile 2026

DeKoevend Park

Nun Run
September 13th, 2026
Littleton, Colorado

$30 – $60

March 2026

Sun 1

March 1, 2026 @ 8:00 am - 12:00 pm

That Dam Run 2026

Cherry Creek Dam Road Cherry Creek Dam Road, Greenwood Village , CO

That Dam Run 13.1, 10K, 5K
March 1, 2026
Greenwood Village, CO

April 2026

Sun 26

April 26, 2026 @ 7:00 am - 1:00 pm

Brooklyn Experience Half Marathon 2026

prospect park Wheat Ridge, CO

NYCRUNS Brooklyn Experience Half Marathon
April 26th, 2026
Brooklyn, NY

$125 – $135

May 2026

Sun 17

May 17, 2026 @ 6:00 am - 1:00 pm

Colfax Marathon Events 2026

City Park 2001 Colorado Blvd, Denver, CO, United States

Colfax Marathon Events
May 17th, 2026
Denver, Colorado

$49

June 2026

Sun 21

June 21, 2026 @ 5:00 am - 10:00 am

Estes Park Marathon, 1/2 Marathon, and Kids Fun Run 2026

Estes Park High School 1600 Manford Ave, Estes Park, CO, United States

Estes Park Marathon, 1/2 Marathon, and Kids Fun Run
June 21, 2026
Estes Park, CO

$35 – $115