St. Patrick’s Day 5K Santa Rosa

More races nearby

• Annadel Half Marathon [annadelhalfmarathon.com] [Register at raceroster.com]

  Sat, Apr 18, 2026 at 9:00 AM

  Description

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  Annadel Half Marathon/10K/5K

  The Annadel Half Marathon, 10K, and 5K

  The Annadel Half Marathon is a non-profit fundraising event that, over the past 15 years, has raised significant funds to help make...

  Annadel Half Marathon/10K/5K

  The Annadel Half Marathon, 10K, and 5K

  The Annadel Half Marathon is a non-profit fundraising event that, over the past 15 years, has raised significant funds to help make Trione-Annadel State Park a more beautiful place for everyone to enjoy. Thanks to the incredible support of our sponsors, participants, and volunteers, this race has become one of Sonoma County’s premier running traditions — and we’re excited to return in 2026!

  The Half Marathon, 10K, and 5K are among the biggest running events in Sonoma County, drawing runners of all levels to the scenic trails of Annadel State Park.

  • Half Marathon: 4-hour cut-off time

  • 10K & 5K: Great options for walkers and first-time participants

  Each participant receives a race medal, a event shirt, and post-race beverages and snacks.

  Join us for a day of running, community, and supporting the park we all love!

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  Protect the Place You Race

  In honor of Earth Day (April 22), we’re proud to host a low-waste event with cup-free aid stations, refill options, and a focus on park stewardship — because every mile should leave Annadel better than we found it.

  A portion of event proceeds is donated to Trione-Annadel State Park and the Sonoma County Parks Foundation.

  Please note that all race registrations are final and non-refundable. We encourage participants to consider purchasing race protection insurance during registration for added peace of mind.

  5.7 km from Santa Rosa
  Canyon Trail, Santa Rosa, California, 95409, United States
  OpenStreetMap Google Maps

  5k 10k 21k Half Marathon Run Trail Walk

• The Big Run Presented by Brooks and Fleet Feet Santa Rosa [runsignup.com]

  Thu, Jun 04, 2026 at 6:00 PM

  Description

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  Celebrate five decades of running with Fleet Feet at The Big Run presented by Brooks. This community 5K on Global Running Day is all about summer vibes, shared memories and the kind of runner’s high...

  Celebrate five decades of running with Fleet Feet at The Big Run presented by Brooks. This community 5K on Global Running Day is all about summer vibes, shared memories and the kind of runner’s high that keeps you coming back. Register today for The Big Run and let the good miles roll!

  *Online Registration closes at 3:00 pm on Wednesday, June 3. After 3:00 pm, sign ups are available at the check in tent.

  Let’s do this. Sign up today!

  DISTANCE: 5k fun run/walk

  WHEN: Wednesday, June 3, at 6:00 pm

  WHERE: Fleet Feet Santa Rosa - 720 Third Street Santa Rosa, California 95404

  PRICE: FREE

  Stay connected:

  ● Find community at Fleet Feet Santa Rosa

  ● Sign up for our newsletter

  ● Join the Fleet Feet Rewards Program

  ● Follow us on Facebook and Instagram

  619 m from Santa Rosa
  720 Third Street, Santa Rosa, California, 95404, United States
  OpenStreetMap Google Maps

  5k Fun Run Run Walk

• Santa Rosa Marathon [finishers.com]

  Sat, Aug 22, 2026

  Description

  Ready to push your limits and live an unforgettable experience?🤩 Come join the Santa Rosa Marathon! If you're passionate about running, whether you are a sprint enthusiast or an experienced marathoner, there's a distance for every runner: from the 5K to the marathon.🏃‍♂️

  74 m from Santa Rosa
  Santa Rosa, California, United States
  OpenStreetMap Google Maps

  5k 10k Half Marathon Marathon Run

• Santa Rosa Marathon [santarosarun.com]

  Sun, Aug 23, 2026

  524 m from Santa Rosa
  Unnamed Road, Santa Rosa, California, 95402, United States
  OpenStreetMap Google Maps

  5k 10k Half Marathon Marathon Run

• Tri to Inspire [inspirationsports.org] [Register at runsignup.com]

  Sun, Sep 27, 2026 at 9:00 AM

  Description

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  Tri to Inspire, formerly the DJFE Triathlon Race Series, was created to introduce the sport of triathlon to the Sonoma County community in a welcoming, inclusive way. This short-distance event is...

  Tri to Inspire, formerly the DJFE Triathlon Race Series, was created to introduce the sport of triathlon to the Sonoma County community in a welcoming, inclusive way. This short-distance event is open to all abilities and is ideal for first-time triathletes and families looking to experience a fun, supportive race environment together.

  Athletes may choose between two distance options. The Mini Sprint includes a 100-yard pool swim, a 3-mile bike, and a 1-mile run. The Sprint distance features a 400-yard pool swim, a 9-mile bike, and a 3.1-mile run. Tri to Inspire is a non-competitive, untimed event designed to help participants complete their first triathlon—or simply enjoy the experience without pressure. More experienced athletes are also encouraged to participate and will find a positive, community-focused atmosphere. The race begins with a pool swim at the Finley Aquatic Center, followed by a flat, family- and beginner-friendly bike and run course along the Santa Rosa Creek Trail.

  Each athlete’s registration includes a custom finisher medal, swim cap, and athlete goody bag. Proceeds benefit Inspiration Sports Foundation, a local 501(c)(3) nonprofit supporting youth in Sonoma County through sports camps and fitness-based programs.

  1.5 km from Santa Rosa
  2060 W. College Avenue, Santa Rosa, California, 95401, United States
  OpenStreetMap Google Maps

  4.1 Miles 12.3 Miles Run Swim Trail Triathlon