Race Discovery
Run by the Sea
Run by the Sea logo

Run by the Sea

Santa Cruz, California, United States
Oct 04, 2026
Running

About this race

Run by the Sea returns to lovely Wilder Ranch State Park on Sunday, October 4th! This unique Half Marathon, 12K run, and 4K run/walk meanders along the gorgeous coastal bluffs of California's Central Coast in Santa Cruz and consists mostly of flat, packed dirt trails. Participants will enjoy scenic coastal views while passing along the bluffs and Wilder Ranch park trails. Get ready to take in the natural beauty of the Monterey Bay, the serene flats of Wilder Ranch's meadows, and maybe even catch a glimpse of some dolphins - no other race is quite like it!

Now in its 10th year, Run by the Sea is organized by the Santa Cruz Track Club and benefits the track club's youth program, Bike Santa Cruz County, and Santa Cruz Mountain Trail Stewards. 

Race Headquarters and Parking 

4K Route

12K Route   Half Marathon Route     

Join fellow runners on October 4, 2026 for the Run by the Sea. It's a fantastic 4K, 12K featuring a flat and fast course in Santa Cruz.

Pick your distance

Running

Run by the Sea 4k

Oct 04, 2026 4K 8:30 AM
$50.00
Open

Run by the Sea 12k

Oct 04, 2026 12K 8:15 AM
$60.00
Open

Weather Overview

These values represent the 4-year monthly averages for October in Santa Cruz.

Temp (°C)
Minimum temperature (monthly average) 12.0° / Maximum temperature (monthly average) 20.7°
Feels Like (°C)
Minimum feels like (with wind chill; monthly average) 12.0° / Maximum feels like (with wind chill; monthly average) 20.7°
Wind (km/h)
Average wind speed (monthly average)
12.9
Precipitation (mm)
Average precipitation (monthly average)
4.8mm

About Santa Cruz

Run by the Sea takes place in Santa Cruz, California, United States. The local timezone is America/Los_Angeles.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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