Run by The Sea

Santa Cruz, United States • 4 Oct 2026

Event

Run by the Sea takes place on Sunday, October 4, 2026, at Wilder Ranch State Park in Santa Cruz, California. The event is organized by the Santa Cruz Track Club and benefits the club's youth program, Bike Santa Cruz County, and Santa Cruz Mountain Trail Stewards. Now in its 101st year, the event offers these distances:

  • 4K
  • 12K
  • Half Marathon

Course and registration

The courses run mostly on flat, packed dirt trails along coastal bluffs and park trails. The route offers views of Monterey Bay and Wilder Ranch meadows and may include wildlife sightings.

Each event shows a registration price that includes an event fee and had limited spots available at the time listed: the 4K priced at $48.70 (including $3.70 fee), the 12K priced at $59.30 (including $4.30 fee), and the Half Marathon priced at $69.90 (including $4.90 fee). Registration opened on February 20, 2026, and entries for each listed event showed 200 spots remaining at the time provided. Race headquarters and parking are listed at Wilder Ranch State Park. Visit the organization's website for the most recent information.

Race information

Half Marathon
Run by the Sea Half Marathon
12 km
Run by the Sea 12k
Run by the Sea 4k
Visit the organization's website for the most recent information.
Trail runs nearby

Run scenic trails through Hacienda Hills at Almaden Quicksilver Park with distances for every level, from kids runs to ultramarathons. Take in Bay Area views, use on course aid and day of race registration, and earn a commemorative finisher..

Conquer scenic natural surface trails and the Mt Umunhum ascent at Trail Conquest Winter in Almaden Quicksilver County Park, with distances from a kids run to 50K. Race day registration, aid stations and a commemorative medal for finishers.

Experience scenic coastal trails at Fort Ord National Monument in Salinas on February 7, 2026, with 10K, 25K and 50K options. Marked routes, aid stations, live timing and finisher awards promise a rewarding day on the trails.

Tackle the Monterey Ultra 50 Miler, a scenic 50.7 mile trail ultramarathon around Fort Ord and Laguna Seca near Monterey. Expect technical dirt trails, big climbs and stunning coastal views in a challenging, well supported race.