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Deferrals are possible through our online registration platform.  Please keep in mind that because we do allow deferrals, under no circumstances will a refund be granted.

All requests for deferral into the 2019 event must be made through the online registration system by January 14, 2018.   We are unable to grant exceptions.  

To accommodate your request, we will carryover your entry to the 41st annual Napa Valley Marathon to be held on Sunday, March 3, 2019.  

This is a one-time deferral and there is a $75.00 processing fee associated with deferring to the following year.

If you were granted a deferral from the 2017 event for the 2018 event, you must register by September 30, 2017.  To register, you must do so by paper form.  To request the form, please email