HomeCaliforniaPleasanton › Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai

Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai

5 ★★★★★ 44 Google reviews · Karate dojo in Pleasanton, California

Part of Goju-Ryu Karate

Karate dojo Free trial Affiliated Kids & teens Competition team

Affiliated dojo — reviews and the dojo's own info point to a recognized Karate style organization or franchise (think Shotokan/JKA, Kyokushin, Goju-Ryu, Isshinryu, Tiger Schulmann's or Villari's). If lineage matters to you, ask which style and organization the dojo belongs to, and under whom the head sensei earned their black belt.

Plan your first class

  • Free trial / intro class most dojos welcome new students with a free trial or intro class — check their site or give them a call to book your first session
  • Kids & youth classes kids and youth Karate classes — built around discipline, focus, and confidence
  • Adult classes adult Karate classes — training built for grown-ups, from fitness and fundamentals to kumite (sparring) at your own pace
  • Competition team a competition team for students who want to test themselves at kumite tournaments
  • Today see hours ·
  • Website & schedule trivalleykarate.com — book classes and see the live schedule
  • Phone (925) 272-8348

Hours

Monday 6–8:30 PM
Tuesday Closed
Wednesday 6–8:30 PM
Thursday Closed
Friday Closed
Saturday 9–10:10 AM
Sunday Closed

Hours shift for holidays, belt tests, and seminars — worth a quick check before a special trip.

The classes they run

Karate classes on the schedule at Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai, confirmed in students' own reviews and the dojo's own info — not guessed from the sign out front.

🧒 Kids Karate 7 mentions

“The instructors were knowledgeable and supportive, making the karate classes engaging and enjoyable for students of all ages, from kids to adults.”

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Teens 2 mentions

“Training at Tri-Valley Karate Pleasanton – Goju Ryu Karatedo was more than just a physical practice; it became a second home during my middle and high school years.”

All dojos that run teens →

🛡️ Self-Defense 3 mentions

“I started attending classes at this dojo in 2021, in my late 40s, and never having had any experience with martial arts or self defense of any kind.”

All dojos that run self-defense →

Other martial arts here

Karate dojos are usually multi-discipline. Here's what else students mention training under the same roof at Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai — mined from their reviews and the dojo's own info.

🛡️ Self-Defense 3 mentions

“I started attending classes at this dojo in 2021, in my late 40s, and never having had any experience with martial arts or self defense of any kind.”

Other dojos that also teach self-defense →

Disciplines are mined from reviews and the dojo's own info — they show what students have trained, not a formal class guarantee. If you specifically want taekwondo, jiu-jitsu, or kickboxing alongside your Karate, confirm the current schedule with the dojo.

What students say

The things reviewers bring up again and again across 44 Google reviews — in their own words.

expert instruction from a great sensei 7 mentions

“Sensei Sanjit is an exceptional instructor. He is deeply knowledgeable about both traditional and modern forms of Karate.”

🌱 welcoming to beginners 3 mentions

“The community of Tri-Valley Karate is very friendly and welcoming, and I am really glad that I joined this dojo.”

friendly, respectful dojo 22 mentions

“What I found was a room full of friendly and dedicated students of all ages and ability levels, led by an extraordinarily patient, knowledgeable, and supportive Sensei.”

strong technique, kata & fundamentals 8 mentions

“They encourage you, support you, and most importantly they teach you the fundamentals of karate while keeping in mind it's most historic past.”

active competition / tournament team 5 mentions

“We also have tournaments in other cities that gives us a feel of how competition works.”

traditional style & affiliation 9 mentions

“Training at Tri-Valley Karate Pleasanton – Goju Ryu Karatedo was more than just a physical practice; it became a second home during my middle and high school years.”

From the reviews

Sensei is a great teacher. He sincerely teaches and cares about your karate education. He is very dedicated and loyal to teaching his students karate. For the past three years I have attended his classes and Sensei has always acknowledged my and my dads learning styles. Thank you, sensei.

★★★★★ — Aparajita, Mar 2019

An update 6 years later: We are still with Sensei Sanjit at Tri-Valley Karate. My daughters and I attend classes regularly every week and have learned so much about karate and how our bodies move over the years. We have built a community of fellow karate partners that truly feels like family.

★★★★★ — Linh, Nov 2024

I joined Tri-Valley Karate in 2019 when I couldn't speak English fluently as I just moved from Japan. I already had a black belt from a different branch of karate then, but Sensei was was very nice and considerate about my circumstance and I was able to learn a lot even with my broken English for the first year.

★★★★★ — Koeri, Nov 2024

I have had both the honor and pleasure of training alongside Sensei Sanjit Mandal for almost 10 years during his time in Boston. He was at that point already a senior student of our Sensei Kazumi Tabata, and a trusted mentor to myself and other new students.

★★★★★ — Asi-Yahola, Apr 2014

Excerpts from public Google reviews. Read all 44 reviews →

Your first Karate class at Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai

Nervous about walking into a Karate dojo for the first time? Almost everyone is, and a good sensei expects beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling basic stances, blocks, punches, and kicks — not hard sparring. Step to the side whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot. What to bring: water, and a mouthguard if you have one — many dojos lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi and the belt your dojo awards you. Kumite (sparring) eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the sensei. It gets easier fast — most people feel far more at home by their third class.

Karate is a contact sport. Ease in, train within your limits, listen to your instructors, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Tri-Valley Karate Pleasanton - Goju Ryu Karatedo Seiwakai

1262 Quarry Ln, Pleasanton, CA94566

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this dojo? Claim your listing — it's free.