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

October 4, 2026

Windsor, CO 80550 US

Boulder Road Runners

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View Roster

Enter the name and email address of the members you’d like to invite. Please note that you can only invite up to invites from a AdventureSignup email address, but you can still email the registration link through your personal email.

How Do You Want to Send These Emails Send from a AdventureSignup email address.

With this option, we will send an email from noreply@runsignup.com to the members you invite.

Send from my personal email address.

With this option, we will generate a template email you can copy and send through your own email address and mail client.

Email Subject Line

Enter Your Personal Message

Email	First Name	Last Name
Email	First Name	Last Name

Group Members

Name	Gender	Age	Location
Flavio D.	Male	55	Boulder, CO
Anonymous Participant	N/A	59	N/A

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

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

Boulder Road Runners

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Event Info

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

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

Boulder Road Runners

Group Details

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Group Members

Event Info

Get Involved