7 events in Santa Rosa, California

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

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

  5k 10k 21k Half Marathon Run Trail Walk

  Canyon Trail, Santa Rosa, California, 95409, United States
  OpenStreetMap Google Maps
• Good Grief 5K, 5M Santa Rosa [go-terraloco.blogspot.com] [Register at ultrasignup.com] - Facebook
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  Sat, May 02, 2026 at 9:00 AM

  5k

  9 4th St., Santa Rosa, California, 95402, United States
  OpenStreetMap Google Maps
• The Big Run Presented by Brooks and Fleet Feet Santa Rosa [runsignup.com]
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  Thu, Jun 04, 2026 at 6:00 PM

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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

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  ● Find community at Fleet Feet Santa Rosa

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  5k Fun Run Run Walk

  720 Third Street, Santa Rosa, California, 95404, United States
  OpenStreetMap Google Maps
• Santa Rosa Marathon [finishers.com] - Facebook - Instagram
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  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.🏃‍♂️

  5k 10k Half Marathon Marathon Run

  Santa Rosa, California, United States
  OpenStreetMap Google Maps
• Santa Rosa Marathon [santarosarun.com]
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  Sun, Aug 23, 2026

  5k 10k Half Marathon Marathon Run

  Unnamed Road, Santa Rosa, California, 95402, United States
  OpenStreetMap Google Maps
• Beer City Half™ Santa Rosa [runsignup.com]
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  Sat, Feb 20, 2027 at 8:30 AM

  Description

  Wind down FeBREWary in Santa Rosa with Beer City Half™! See the sights, run the trails, and drink the brews that have made Santa Rosa famous world-round. Beer City Festival is a full day on a full weekend. Drink local and dig it! (ProTip: Capacity is limited and this event sells out.)

  1 Miles 5k 10k 13.1 Miles Run Trail

  Santa Rosa, California, 95401, United States
  OpenStreetMap Google Maps

Local Clubs & Organizations