You are not able to defer your 2024 entry fee to 2025. If you need to cancel, please email us at to inform us of your cancellation. If you do cancel, you may take the amount of your entry fee as a charitable donation on your income tax return. The Big Sur International Marathon is a 501(c)(3) non-profit organization.


Registrants who are pregnant and are unable to participate in the race can email with a doctor’s note for a one-time deferral at no charge.


During the registration process, you have the opportunity to add refund protection offered from Protect Group. This enables you to receive a refund for the race if you are unable to attend the event. Please note: you CANNOT retroactively add refund protection. If you select this option, refunds are given by Protect Group. The race is not involved in the refund process in any way. Refunds will be given on all cart items at the time of your initial checkout (items added at a later date will not be refunded). Please see HERE for approved refund circumstances.


Entrants in the April 28, 2024 race will have the opportunity to transfer their race registration to another individual between February 19, 2024 and February 29, 2024. Click here for detailed instructions on how to transfer your registration.

The transfer fess are as follows:

  • $30 for the Marathon, 21 Miler, 11 Miler
  • $20 for the 12K
  • $10 for the 5K


Please note: Transfers into the Boston 2 Big Sur category are not allowed. If you’d like to run Boston to Big Sur, please register in this category once it is open to participants, do not enter the random drawing.

Deferrals to future race years are not permitted.