Sumo's Family Jiu JitsuSumo's Family Jiu Jitsu sumos-jj.com
Saturday, September 5

Grand
Opening

9:00 AM – 1:00 PM · Free · Everyone welcome

Three free classes across the morning for kids, teens and adults, our Official Ribbon Cutting Ceremony, then food from our neighbors in the plaza, music, and a prize drawing before we close at one. Come train, come eat, or just come look around.

Book a free class See the schedule
Free · Ages 4 and up · No experience needed
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Foster City Chamber of Commerce
Presented with the Foster City Chamber of Commerce

Official Ribbon Cutting Ceremony

The Mayor of Foster City will cut the ribbon on the city's newest jiu jitsu academy, alongside the Chamber of Commerce. Come stand in the photo. We'd like the neighborhood in the picture when we do it, and food goes out right after.

Ceremony time announced soon
Every class is free that day

Saturday Schedule

These are our normal Saturday class times, so what you see that morning is exactly what a regular week looks like here. Every class is free and open to anyone who walks in.

9:00
Lil' Sumos 1
Ages 4–6 · 45 min
10:00
Lil' Sumos 2
Ages 7–10 · 45 min
11:00
Teens & Adults
All levels · 45 min
12:00
Food & Music
Stay and hang out
12:30
Prize Drawing
Winners announced
1:00
Doors Close
Thanks for coming

Come for one class or stay the whole morning. Open mat runs between sessions, so there's always something happening on the floor. Wear comfortable athletic clothes and bring a water bottle. We handle the rest.

Four hours, all free

What's Happening

Free classes

Three classes across the morning covering every age group, taught the way we teach them every week. Total beginners are the whole point. No uniform needed, no signing up for anything.

Ribbon cutting & food

The Mayor of Foster City and the Chamber of Commerce join us to cut the ribbon, followed by food catered from the restaurants right here in Edgewater Plaza. We'll post the exact ceremony time on this page once it's locked in.

Prize drawing at 12:30

Three free months of membership, private lessons, gear and gift cards from our plaza neighbors. Everyone who walks in gets an entry. Book a free class that day and you get three more.

Meet the coaches

Matt and Raf will both be on the mat the whole time, along with the family. Bring your questions, about jiu jitsu, about your kid, about whether your knees can handle it.

Closing September 5

Founding 50

$199/mo
6-month minimum · Our lowest rate
  • Unlimited classes, every program
  • Free uniform (Gi), t-shirt and swag
  • Rate locked for your full term
  • Family discounts for the household
Book a free class

Book a free class on or before Saturday September 5 and we'll hold the Founding 50 rate for you through September 10, even if you're away for the long weekend. We don't sell memberships online. Everyone takes a free class first, then we sort out the paperwork in person.

First time on the mat?

What to Expect

Real classes, kid pace

These are real classes, not a demo. Kids warm up with games and learn their first techniques at kid pace. Parents can watch from the lobby or get on the mat themselves.

Nobody is behind

Adults, you will not be the only beginner in the room and nobody is going to try to hurt you. Wear a t-shirt and shorts or leggings. That's the entire dress code.

Zero pressure

Nothing costs anything that day and we won't chase you around the room. Take a class, eat some pizza, look at the mats, decide later.

Right in the neighborhood

There's good jiu jitsu all over this peninsula. The difference here is that it's five minutes from your house, in the plaza you already shop in, so you'll actually keep going.

Edgewater Plaza

Find Us

939C Edgewater Blvd, Foster City

Right next to Osaka Market in Edgewater Plaza, across the street from Foster City Elementary. Free plaza parking, and more of it on the far side by the market.

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Save Your Spot

You can absolutely just show up. But telling us you're coming means we hold a spot in the class you want, and we know how much food to order.

Want to pick an exact class time instead? Book a free class here.

Foster City Chamber of Commerce
Proud member

Foster City Chamber of Commerce

We're grateful to the Chamber for helping put this day together, and for bringing the Mayor out to cut the ribbon with us. Logo used with permission.