Windsor Marathon 26.2, 13.1, 6.2

Sun October 10, 2021

This year's event will start and end at The Island at Pelican Lakes in Water Valley, with a great after party including beer, music and live entertainment! New to the series is a Full Marathon distance, as well as the Half Marathon and 10K.
This year’s race will one again benefit a local non-profit, to be announced soon! 

Register Now!

Run or walk as you explore a variety of terrain, trails and views. This course includes challenging hills, paved and single track dirt trails, roads and more. Official Course Route Coming Soon!

Experience beautiful Windsor, Colorado

Who We Are

The run.Windsor Race Series is a local, woman owned and operated event organization bringing quality endurance events to Northern Colorado. We’re passionate about providing unique experiences that celebrate running and the people, businesses and organizations that make our community great. All of our races donate proceeds to a local cause we’re passionate about.
Learn more about our races, running program and our training studio:

FusionFIT Training Studio run.Windsor

Race Day

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