Windsor Marathon, Half Marathon, 10K & 5K

Sun October 8, 2023

Welcome to the 4th annual Windsor Marathon Event, held by run.Windsor


Starting and ending at The Island at Pelican Lakes in Water Valley, with a great after party including a gourmet breakfast, drinks, music, kids zone and more!

There's a distance for everyone with a kids fun run, 5k, 10k, half and full marathon.

A portion of proceeds go to Windsor Gives to support Realities for Children.

Packet Pickup

Saturday, Oct 7th from 12 pm - 7 pm
Banquet Room at Pelican Lakes Golf Course

1600 Pelican Lakes Point, Windsor, CO 80550

Grab your shirt, bib and stick around for lunch or dinner at the Sand Bar!

Race Day Schedule

Sunday, Oct 8th

The Island at Pelican Lakes in Water Valley (start/finish)
445 Baja Drive Windsor, CO 80550

Late PPU begins at 6:30 am

7:00 AM - Marathon Start
8:00 AM - Half Marathon Start
8:30 AM - 10k Start
8:45 AM -  5k Start

11:00 AM - Kids Fun Run: Timed run + free fun run

9:00 AM - 12:00 PM Kids Zone: Bouncy house, face painting & Free 1 Mile 

9:00 AM - 2:00 PM: Post race experience for runners and vendor fair with 12+ vendors.

Buffet breakfast with eggs, pancakes sausage/bacon, and more. 

Visit the Online Store to add on breakfast for your spectators

Video experience of the Windsor Marathon

Enjoy the beautiful 26.2 & 13.1 loop courses as you are on paved trails out to River Bluffs/Kyger Reservoir, up CR 13, finishing through Water Valley onto the Island at Pelican Lakes. The Marathon will take you through a loop in Belmont Ridge before returning to Water Valley.

Marathon Route 13.1 Route

The 10k route is fast loop course as you travel through Pelican Lakes around Eastman Park, up the hill on 7th street, and finish on the Island at Pelican Lakes. The 5K is a quick out/back course.

10k Route 5k Route

Runner Perks

Breakfast Buffet
Beer + Non-alcoholic beverages
Finisher Shirt + Medals for all distances

Register Today

Race Info

The race from above

run.Windsor Run Club

Join the run.Windsor Run Club to get 20% off your Race Registration, a team training shirt, monthly newsletter, perks from our partners and more!

Who We Are

The run.Windsor Race Series is locally owned and operated by Colorado native, Mandy Mullen. Our event organization brings seven quality endurance events to Northern Colorado, ranging from 5K up to Ultra Marathons. We’re passionate about providing unique experiences that celebrate running and the people, businesses and organizations that make our community great. All races donate proceeds to a local cause we’re passionate about.

Follow Us Race Series



We are proud to announce our 2022 beneficiary for the Windsor Marathon!
A portion of proceeds will be donated to Windsor Gives, a 501(c)3 non-profit to support Realities for Children, a 501(c)3 non-profit that provides emergency and ongoing support needs of children in Northern Colorado who have been abused, neglected, abandoned, or are at-risk.

Thank You Sponsors!


Mount Meeker

Mount Alice


Brought to you by

Race Day

If you continue to use this site, you consent to use all cookies. We use cookies to offer you a better browsing experience. Read how we use cookies and how you can control them by visiting our Privacy Policy.

If you continue to use this site, you consent to use all cookies.