Amsterdam52.368° N / 4.926° EAmsterdam · see hours

CONTROLTHE MOMENT.

Name: DOJO 12
Address: Czaar Peterstraat 12, Amsterdam, Noord-Holland, 1018 NW, NL
Telephone: +31 20 244 1212

Strength without noise. Technique without ego. Martial arts taught with patience, precision and purpose.

Explore the disciplines

A karate class kneeling in silence on foam tatami, eyes closed, waiting for the first movement. — Karate, Judo and Brazilian Jiu-Jitsu — AmsterdamDemonstration photography · replace with the school’s own

Karate, Judo and Brazilian Jiu-Jitsu — AmsterdamDemonstration photography · replace with the school’s own

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The method

Three things we return to.

Classes are taught slowly enough to be understood. We do not fill the hour with noise. We repeat the movement until it is quiet.

01
Attention
See the situation before reacting.
Most mistakes start in the half-second you skip. We train looking: distance, weight, breath. Then the technique has somewhere to live.
02
Technique
Efficiency is stronger than force.
If a movement only works on someone smaller, it is not a technique yet. We reduce effort until the mechanics hold without a performance.
03
Respect
Every partner is part of your progress.
You cannot learn a throw on a bag that never resists. Partners are not opponents to beat. They are the other half of the movement.

Disciplines

Three rooms. One floor.

Karate, Judo and Brazilian Jiu-Jitsu share the tatami. The classes do not. Each discipline keeps its own timing, etiquette and grading.

Karateka practising a rising block in a line, belts from yellow to brown.

Timing, distance and decisive movement.

Shotokan fundamentals, kata and controlled kumite. We spend more time on the step before the strike than on the strike itself.

Level: Beginner to advanced
Duration: 60–75 minutes
Frequency: Five classes a week

Balance is temporary. Learn how to take it.

Throws, breakfalls and newaza. Standing work is technical. Groundwork is patient. You will spend a lot of time learning how to land.

Level: Beginner to advanced
Duration: 75–90 minutes
Frequency: Four classes a week

Stay calm where others start to panic.

Gi classes built around position, breath and problem-solving. Sparring is supervised. Force is a last resort, not a personality.

Level: Beginner to intermediate
Duration: 75 minutes
Frequency: Five classes a week

Progression

A language of progress. Not a single ladder.

Belts are a conversation, not a passport. Karate, Judo and Brazilian Jiu-Jitsu use different grading structures. The sequence below is how we talk about progress in this school — not a claim that every discipline shares one ladder.

White

You arrive. The first skill is standing still long enough to see what is in front of you.

Weekly timetable

The week on the tatami.

Adults, youth and beginner classes, Monday to Saturday. Times are demonstration content. Buttons open a booking sheet in this browser only.

Monday

Instructors

Three people. No theatre.

Demonstration portraits. Replace them with the school’s instructors. Credentials are ordinary teaching papers — not invented titles.

Judo
Maya Vermeer
Head instructor
Maya started judo in Leiden at nine and has taught in Amsterdam since 2016. She is more interested in how you fall than in how a throw photographs. Adults and youth both train under her on the same tatami, at different hours.
- Judo Nederland coach diploma
- First aid
- Child safeguarding
Karate
Kenji Sato
Instructor
Kenji teaches Shotokan with an emphasis on distance and timing. He moved to Amsterdam in 2019 to study, and stayed to teach. He still takes class as a student twice a week.
- Karate instructor certificate
- First aid
- Youth assistant coach
Brazilian Jiu-Jitsu
Rafael Costa
Instructor
Rafael teaches Brazilian Jiu-Jitsu as a problem-solving practice. Purple belt. He cares more about whether you can breathe under pressure than whether you can finish a highlight sweep.
- BJJ purple belt
- First aid
- Child safeguarding

The room

A working floor in a quiet building.

The tatami is the centre. Around it: wood, changing rooms, and the small equipment that training actually needs. The rest of the house stays out of the way.