Skip to main content
triboutique.ca - Triathlon gear with free shipping over $125 triboutique.ca - Free shipping over $125 with coupon code CANADA: Triathlon Equipment, wetsuits, Swimskins and gifts.

Run by the Sea

Date:
Sun, Oct 04, 2026 at 8:00 AM – 10:30 AM
Location:
Santa Cruz County, California
95060
United States
OpenStreetMap Google Maps
Links:
runbythesea.org Register at runsignup.com
Tags:
12k 4k Run Trail Walk

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

Image

4K Route

Image

12K Route

Image

Half Marathon Route

More races nearby

  • Santa Cruz Sunrise Rotary Firecracker Run [runsignup.com]

    Sat, Jul 04, 2026 at 8:00 AM

    Description

    Year 41 — and America's 250th Birthday!

    This is the one you don't want to miss.

    The Santa Cruz Sunrise Rotary Club is fired up to bring you the 2026 Firecracker — and this year is unlike any other....

    Year 41 — and America's 250th Birthday!

    This is the one you don't want to miss.

    The Santa Cruz Sunrise Rotary Club is fired up to bring you the 2026 Firecracker — and this year is unlike any other. Our nation is celebrating its 250th birthday, and we're throwing the party Santa Cruz style: lace up your shoes, hit the pavement, and kick off Independence Day the way this community has for over four decades at Harvey West Park, Santa Cruz CA.

    We're calling all runners, walkers, families, and friends — our goal is 1,000+ runners this year!

    That's right. We want to make the 2026 Firecracker the biggest in our history. So grab your crew, sign up your neighbors, rope in your coworkers, and let's pack Harvey West Park on the Fourth of July. Whether you're chasing a PR or pushing a stroller, there's a course for you.
    0 m
    Santa Cruz County, California, 95060, United States
    OpenStreetMap Google Maps

    5k Run Walk

  • San Lorenzo River Trail Run [runsignup.com]

    Sat, Jul 11, 2026 at 7:50 AM

    Description

    Run through 300 foot tall, 1500 year-old Coastal Redwoods, lush stream canyons, open meadows, pine and oak forests, and high dry chaparral-covered ridges. The Half Marathon, 30K, Marathon, and 50K events cross the San Lorenzo River (shown above) multiple times!

    (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)
    0 m
    Santa Cruz County, California, 95060, United States
    OpenStreetMap Google Maps

    2 Miles 6.3 Miles 13.1 Miles 30k 26.2 Miles 50k Run Trail

  • Wharf to Wharf Race [finishers.com]

    Sun, Jul 26, 2026

    6.9 km
    Santa Cruz, California, United States
    OpenStreetMap Google Maps

    10k Run

  • Tri Santa Cruz [runsignup.com]

    Sun, Aug 09, 2026 at 8:00 AM

    Description

    Come play at of one of the most fun and scenic events on the west coast. This race has a sprint and international (Olympic) distance triathlon, with relays, aquathalon and aquabike categories for...

    Come play at of one of the most fun and scenic events on the west coast. This race has a sprint and international (Olympic) distance triathlon, with relays, aquathalon and aquabike categories for both races. Clydesdale and Athena triathlon categories are available.

    There is a special, non-competitive Family & Friends wave for people who are new to triathlon or just want to race with family and friends regardless of age or gender.

    Special youth pricing is available for youth 12-17 and seniors 70+ for all individual distances. Contact us for a discount for an all youth/senior relay team.

    Triathlon club disounts available. If your Tri Club does not have a code, have a club officer contact us.

    Sheltered swim and flat bike and run course make this a perfect place for your first race or a PR. Voted one of the best late season triathlons in the country. The bike ride is a totally closed course and both the bike and run courses follow the coastline to create one of the most scenic races around! (Pending approval of the 2025 bike course)

    Stick around and play for a day at the famous Santa Cruz Beach Boardwalk or visit the Surfer Museum or National Marine Sanctuary Center.

    Participants will receive a finisher medal and custom t-shirt as part of their registration, plus a post race lunch and awards.
    6.9 km
    119 Center Street, Santa Cruz, California, 95060, United States
    OpenStreetMap Google Maps

    Aquabike Cycling Duathlon Run Swim Triathlon Walk

  • Santa Cruz Trail Run [insidetrail.com] [Register at ultrasignup.com]

    Sat, Aug 22, 2026

    3 km
    Henry Cowell Redwoods, S. P., Santa Cruz County, California, 95018, United States
    OpenStreetMap Google Maps

    10k 30k Half Marathon Run Trail

More races nearby →

Local running event organizer

See all organizations →
Like Wikipedia, anyone can contribute. Sign up to add your local events.