The Rock CF Thumb Coast Marathon, Half Marathon and 5K

Sun November 2 2025

Your browser has JavaScript disabled. You may experience issues registering or using other parts of the website. Please enable JavaScript if possible.

The Rock CF Thumb Coast Marathon, Half Marathon and 5K

Sun November 2, 2025 Port Austin, MI 48467 US Directions

DDR Quads of Fury

Join Group/Team

Invite Friends

	<script type="text/javascript" src="https://www.adventuresignup.com/js/widget2.js?page=race-group&amp;raceId=172965&amp;raceGroupId=1730577"></script><br/>

	<noscript><p>Sorry, you must enable javascript to view this content from <a href="https://www.adventuresignup.com/">https://www.adventuresignup.com/</a>.</p></noscript>

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
Duncan R. Photos	Male	31	Lapeer, MI
Dylan R. Photos	Male	33	Centreville, MI

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.