Ready to race? Register directly on the official race website — opens in a new tab.
Register →Save this race to your wishlist, set a registration reminder, and build a full training plan on Trehko.
Run by the Sea is a road race running event held in Santa Cruz, CA on Oct 4, 2026. The course has a trail profile.
Trehko tracks registration status, entry fees, and deadlines for Run by the Sea and thousands of other endurance races. Use the app to set a registration reminder and build a training plan tailored to race day.
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