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

Port Austin, MI 48467

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

Registrant #1

Login with your RunSignup account.

Who are you registering? *

First Name *

Last Name *

Email Address *

Confirm Email *

Create Password *

This will be the password for your RunSignup account.

Confirm Password *

Date of Birth *

Format: mm/dd/yyyy

Used for age group calculations

Gender *

Male Female

Non-Binary Prefer Not to Say

Phone *

Valid formats include: 000-000-0000 or 0000000000

Street Address *

Country *

Zip Code *

City *

State *

Choose Your Event *

Marathon

Sunday November 2, 2025

$95.00 + $7.70 SignUp Fee

(Group Pricing)

Half Marathon

Sunday November 2, 2025

$75.00 + $6.50 SignUp Fee

(Group Pricing)

5K

Sunday November 2, 2025

$40.00 + $5.00 SignUp Fee

(Group Pricing)

Virtual Races

You must click the radio button first.

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.

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

Sign In / SignUp

Registrant #1

Warning! You are editing the account information for .

Choose Your Event *

Registration is full for the following Event :

Sign In / SignUp

SIGN IN

Sign In / SignUp

Not a user yet?

Hi,

Registrant #1

Warning! You are editing the account information for .

Choose Your Event *

Registration is full for the following Event :

Sign In / SignUp

Not a user yet?

SIGN IN