2025 Colfax Marathon Change Form


Event Date: Monday, March 30th, 2026 - Thursday, April 30th, 2026


Online change form is now closed. All changes must be made in person at the Expo. 

This form is for registered runners to make changes to an exsiting registration. Select an option below. Changes will be reflected on Race Roster within 3-5 days. 

Visit 
www.runcolfax.org for more information.

Click on a button below to begin your registration: