15 running, fun run, ultra, and other events in Santa Rosa, California

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!

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.

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

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● Join the Fleet Feet Rewards Program

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Giro Bello is BACK!!! June 27, 2026

The Giro Bello is the primary fund raiser for the Rotary Club of Santa Rosa and generally nets $65-70,000 in funds to be used by the club to conduct community service projects both locally and internationally. Projects supported by the Rotary Club of Santa Rosa include:

college scholarships, local hands on projects, social events for underprivileged children and home bound seniors, literary projects in Santa Rosa, Mexico, and Guatemala, telemedicine in Nepal and Africa, cervical cancer screening in Senegal, and quality of life projects for at risk mothers/children, and environmental conservation efforts.

Thank you for your continued support of the Giro Bello and the Rotary Club of Santa Rosa.

Ray Giampaoli

Ride Director 2026 Giro Bello

Thank you for your support!

Registration Includes:

• Meal ticket for a post-ride meal

• Beverage ticket to go with your post-ride meal

• Post ride vendor fair and entertainment

• Swag bag

• All routes are SAG-supported and have frequent and well-stocked rest stops!

• Route Maps

Packet pick up will be at Balletto Vineyards, 5700 Occidental Rd, Santa Rosa, CA 95401 on Friday, June 26, 2026 between the hours of 4:00pm and 8:00pm. We strongly encourage riders to pick up registration packets on Friday.

However, packet pick-up will be available on event day between the hours of 6:30 a.m. and 8:30 a.m. at the expo area at Balletto Vineyards.

Routes: All New Routes for 2026

As in past years, we will have 3 route options:

Century 103.1 miles, 6466 ft of climbing -

Metric Century 64.3 miles, 3876 ft of climbing -

50k 30.3 miles, 1297 ft of climbing -

You've commented and we listened. We have kept our routes South of River Road this year to enhance a safer ride for everyone.