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Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run logo

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

Windsor, Colorado, United States
Oct 04, 2026
Running

About this race

Welcome to the Windsor Marathon. This event starts and ends at The Island at Pelican Lakes in Water Valley, with a great after party including breakfast, drinks and music. Tour beautiful Windsor on a variety of terrain, through golf courses, along the Poudre River trail, up and down hills, and event single track dirt trails for the marathon.

There's a distance for everyone with a kids fun run, 5k, 10k, half and full marathon. This year's races benefits Banner MD Anderson Cancer Center and the Weld RE-4 Foundation. Create a team and let's show our strength in numbers!

Join fellow runners on October 4, 2026 for the Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run. It's a fantastic Marathon, Half-Marathon, 10K, 5K, 1.6K featuring a flat and fast course in Windsor.

Pick your distance

Running

Windsor Marathon

This course runs through the golf course at Pelican Lakes in Water Valley to Eastman Park, along the Poudre River Trail to River Bluffs Open Space, up County Road 13 to Belmont Ridge Open Space, through Raindance and down New Liberty to the Island at Water Valley. Finisher medals, lunch and long sleeve tech shirts.

Oct 04, 2026 Marathon 7:00 AM
$115.00
Open

Windsor Half Marathon

This course runs through the golf course at Pelican Lakes in Water Valley to Eastman Park, along the Poudre River Trail to River Bluffs Open Space, up County Road 13 and down New Liberty to the Island at Water Valley. Finisher medals, lunch and long sleeve tech shirts.

Oct 04, 2026 Half-Marathon 8:00 AM
$95.00
Open

10K

This course runs through the golf course at Pelican Lakes in Water Valley to Eastman Park, past the Poudre River Water Experience, and finishing on the Island where the after party will be held. Finisher medals, lunch and long sleeve tech shirts.

Oct 04, 2026 10K 8:30 AM
$65.00
Open

5K

This course runs through the golf course at Pelican Lakes in Water Valley, finishing on the Island where the after party will be held. Finisher medals, lunch and long sleeve tech shirts. $5 of your entry fee goes to 5k support Banner MD Anderson Cancer Centers of Colorado.

Oct 04, 2026 5K 8:45 AM
$50.00
Open

1 Mile Fit & Fun Run

Join us for the 1 mile Kids Fun Run at the Windsor Marathon. The run is open to all ages and on the beautiful Island at Pelican Lakes in Water Valley! Kids will receive a race bib + participant medal. Bouncy Houses and Face Painting are also included! $5 from the Fit and Fun Run benefits Banner MD Anderson Cancer Centers of Colorado. New Route: Leaving the island, kids will run through the start line chute, and a loop around the W-Club

Oct 04, 2026 1.6K 11:00 AM
$20.00
Open

Weather Overview

These values represent the 6-year monthly averages for October in Windsor.

Temp (°C)
Minimum temperature (monthly average) 6.3° / Maximum temperature (monthly average) 21.6°
Feels Like (°C)
Minimum feels like (with wind chill; monthly average) 3.0° / Maximum feels like (with wind chill; monthly average) 21.6°
Wind (km/h)
Average wind speed (monthly average)
17.5
Precipitation (mm)
Average precipitation (monthly average)
0.7mm

About Windsor

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run takes place in Windsor, Colorado, United States. The local timezone is America/Denver.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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