Marina 10k, 5k, Double 15k and Kids 1 Mile at Brisbane California

NOTE: RACE PRICING INCLUDES FERRY FEE

You'll fall in love with San Francisco all over again as you follow this hilly loop trail circumnavigating Angel Island. Along the way, savor the panoramic vistas of the Golden Gate Bridge, San Francisco, Alcatraz Island, the East Bay and Marin County. The 10K is a single loop. The Half Marathon does the loop twice. The event is limited to 400 participants so don't wait too long to register!

18th Annual Women's Run San Francisco

Sunday, APRIL 12th, 2026

5k, 10k, Sirena10 Mile, Mermaid Dash, Virtual Run

Customize your SWAG (Save up to $14): Registration includes a race shirt, finisher medal & necklace. If you don't want all the swag you can remove items during registration and reduce your entry fee.

No Shirt: Save $8

No Medal: Save $3

No Necklace: Save $3

10 Mile: Cross the GOLDEN GATE BRIDGE with the Sirena10 Mile course! Guaranteed to get the best of the BEST views of San Francisco. After crossing the bridge on the Pacific side you'll return on the bay side for stunning views of the San Francisco skyline.

10K: The 10K course goes up and into the Presidio for where you'll soak in views of the bay and the Pacific Ocean. Run underneath the Golden Gate Bridge and pass by the historic Fort Point before heading to the finish.

5K: Flat, yes totally flat... the 5K is great for joggers, walkers and runners looking for the picturesque views without the hills.

Virtual: Virtual participants can do any of the distances and will receive their swag items in the mail. Participants who register after April 8th will have their packets mailed out after the in-person race.

Mermaid Dash: A 1.5 mile dash for girls and boys ages 6 to 12. The dash participants receive a medal, necklace and post race food. Note: The dash entry does not include a race shirt.

Age Discounts

Youth 19 & under receive a 20% discount*

*Age discounts automatically applied during registration

Explore San Carlos' outstanding trail system as a runner in the fourth annual No Foolin' Foot Race! There's something for everyone with four challenging events through Big Canyon, Eaton and Pulgas Ridge.

• 1K (~350ft of climbing) - Perfect for adventurous kids age 5-10

• 5k (~530ft of climbing)

• 10k (~1,500ft of climbing)

• Long Course NEW this year! (15K with ~2,300ft of climbing)

Early bird pricing available through March 18, 2026.

Consider yourself warned: This race is no joke! Our courses are technical, grueling and loads of fun.

We will be hosting course previews on Sunday, March 8 (5K and 10K routes) and Saturday, March 28 (5K and 15K routes) in partnership with A Runner's Mind and Brooks. RSVP on Strava, and join our Strava Club for updates.

Start and Finish Festival at Crestview Park. Professional timing; Tech-Ts and free runner photos for all participants; Awards in multiple categories.

All proceeds benefit maintenance and improvement of San Carlos open space trails.

A race is only as good as its crew! We have many exciting volunteer opportunities. All volunteers receive a free t-shirt and complimentary entry in next year's race. Sign up here.

Presented by Kaiser Permanente in partnership with the Parks and Recreation Foundation of San Carlos and the City of San Carlos.