California International Marathon

Welcome to the 2025 California International Marathon. CIM strives to offer multiple registration options that provide registrants maximum flexibility in their marathon race entry. Each marathon entry tier and price point offers different registration solutions if you decide at any time you are unable to run the marathon. These options range from NO flexibility in our "Unprotected Entry" (Blue) level all the way to a fully transferrable or deferrable option in our "Worry-Free Entry" (Gold) level. There is limited space in each entry Level. Please review your options carefully and choose the option that works best for you. Please Note: CIM has a strict 6-hour course cutoff