How to Start a Judo Club (Without Betting the House)

Danny Gutman teaches judo in Queens. When Alex asked him about the ups and downs of running ITC New York's judo program, he did some quick math on the competition.

Here's the good news if you want to start a judo club: odds are few people near you are doing it.

The bad news is the reason why. Judo is hard on the body. It's also hard to staff, and harder to keep people in.

So here's how to start a judo club, in the order you'll actually hit things.

First the paperwork that makes it legitimate (charter, coach, insurance), then the mats and the money, then filling the mat and keeping people on it.

If you're after the general version, there's a full guide to how to start a martial arts school. This one is judo only.

To keep the math honest, I'll run one made-up club through the whole post: Ippon a Time Judo Club. It's one black belt teaching two nights a week in a rented room.

(The name is terrible. I stand by it.)

Decide What Kind of Judo Club You're Starting

Before you pick a federation or a mat, pick the kind of club you're building. Most judo clubs start in a rented room or inside another gym, and a few go straight to a dojo of their own.

A number helps here.

USA Judo's historical membership numbers show 425 affiliated clubs and 10,443 members in 2022. That works out to about 25 members for every club.

A judo club is a small thing, and that's fine. Most of them start in borrowed space and stay a manageable size.

Plan for about 25 members, and you won't sign a lease you can't carry.

Those figures cover USA Judo only, and 2022 is the last year in its table. It now says it has more than 500 clubs, and the USJF and USJA have clubs of their own.

The rented-room club

A rec center, a YMCA, a school gym, a church hall. You rent the room for two or three evenings a week and teach.

This is the cheapest way in.

The catch is that most of these rooms come with a basketball floor, and judo is mostly falling down on purpose. Unless the venue already has proper mats, you're buying them, and storing them, and laying them out before every class.

The club inside another gym

You rent mat time from a BJJ or MMA school that already has the space and the padding.

Sasaki Judo owner Shinjiro Sasaki works the other side of this deal. He contracts with other dojos to teach judo for a semester at a time.

Sasaki finds plenty of grappling gyms that want judo and can't staff it.

"So, like, they want to do judo class, but they have only Brazilian Jiu-Jitsu senseis."

If you're the judo sensei they don't have, a shared-mat arrangement gets you a ready room and an audience of grapplers who already know they hate being thrown.

If you already own the gym and want to add judo yourself, start with the guide to adding judo classes.

The full-time dojo

This is your own lease, and your name on the door.

Sasaki is the model here.

He's been at his Orlando location about eight years and set a goal of 130 students, with about 150 as the point where the room would be packed. His full story is in the guide to making a living teaching judo.

ITC New York shows the risk. It opened in 2006 in a Long Island City basement, then got pushed out twice as landlords found better uses for the space.

Its current home is the first one with windows.

How the club models compare:

Most people should start on the first or second rung. You can always move up. Moving down is called closing.

Charter the Club With a Federation

A US judo club runs through a national body. Insurance, rank, coaching credentials, and tournaments all flow through one, so you'll pick one early.

There are three main options: USA Judo, the USJF, and the USJA. Their rules differ more than you'd expect.

The short version: Go where your rank already sits. The details are below.

USA Judo

USA Judo is the national governing body, and its club resources page spells out the deal.

• Cost. A club membership is $100 a year and expires December 31.
• Coach. Every club must have a fully certified USA Judo coach attached to it at all times.
• Screening. Members and staff who need it must complete annual SafeSport training and keep a current NCSI background check.
• What you get. Access to general liability insurance, the ability to sanction events, a "Find a Club" listing, and a $5 rebate per active member at year end for eligible clubs.

USA Judo's club affiliation sheet, which it wrote for jiu-jitsu academies joining the federation, says the $100 covers the club and its coaching staff under the federation's general liability policy during sanctioned activities.

Its general liability summary lists a $5 million per-occurrence limit.

Your students pay their own federation dues on top of yours. USA Judo lists adult membership at $100 a year, and $60 for a youth's first year.

USJF and USJA

The USJF works through regional black belt associations called yudanshakai.

Its club page says the head instructor must hold shodan or above, and the club must register with a yudanshakai (it doesn't have to be the local one).

The fiscal year starts September 1. Once the national office has your application, the club is covered by general liability insurance for judo-related incidents.

The USJF doesn't post a current club fee.

It comes in two parts: a national share and whatever your yudanshakai adds. The national share was $25 the last time the USJF published it, in a 2020 memo waiving it for a year.

Ask your yudanshakai for the full number before you apply.

Waivers come with a schedule, too. USJF clubs use the federation's insurance-approved waiver (the national office customizes one for your club), and members re-sign it every year. The USJF says an unsigned waiver can affect the insurance.

The USJA charges by club size. Its club registration form lists $35 a year for clubs under 25 members, and larger clubs pay more.

The club renews by March 1 or loses its chartered status.

All USJA coaches need a background screening, SafeSport or NFHS training, and CDC Heads Up concussion training.

What each federation asks for:

Each federation's own pages, checked October 30, 2026. Club fees and coverage terms change; confirm before you register.

Some clubs belong to more than one. That's legal, and it's also more forms. Pace yourself.

Your own coaching credential

For a USA Judo club, the coach attached to it has to be certified.

USA Judo's coach certification page puts the entry-level State certification at senior brown belt (ikkyu), with no in-person clinic.

Regional and National levels need shodan, and National needs an in-person clinic for new certifications.

You'll also need a current USA Judo membership, an NCSI background screen (good for two years), a SafeSport certificate (good for one), and your rank certificate.

USA Judo accepts rank certificates from the USJF, USJA, and ATJA, with USJF and ATJA ranks accepted up to sandan. So a black belt from another federation doesn't mean starting over.

CPR and first aid are only recommended. Get them anyway. You're teaching people to fall down.

Get the Legal and Insurance Basics Done

Federation coverage is a start. You'll probably need more.

Venues will ask for a certificate of insurance before they hand you a key. And a club taking monthly dues is a business, even if it feels like a hobby with a bank account.

Settle these before the first class:

• A business entity. An LLC or a nonprofit keeps the club's debts the club's. Talk to an accountant in your state about which fits.
• A waiver for every member. The USJF ties signed waivers to its insurance and has members re-sign every year. This liability waiver guide covers what goes in one.
• Your own policy, if you need it. A rec center may want its name on a policy the federation doesn't issue.

For a sense of cost, Sadler publishes martial arts school rates of $18.90 per student a year, with a $750 annual minimum, for $1 million of liability plus participant medical coverage.

The guide to martial arts insurance breaks down what policies like that cover and what they leave out.

A 25-member club pays the minimum. That's about $63 a month.

Find Mat Space That Can Take a Throw

Judo needs more floor and more padding than a grappling-only room. People are going to land on it, at speed, over and over, for years.

How much mat, and how thick

Think in pairs.

Picture how many pairs you want throwing at the same time, then give each pair room to land without rolling into the next pair.

Then add a border around the whole thing, so nobody lands on a wall or a bleacher. If the room has walls close to the mat, pad them.

Mat type matters as much as mat size. A thin puzzle mat that works for drilling armbars is a bad surface for a hip throw.

Judo mats and BJJ mats come from the same companies, and often they're the same mat. Zebra, Dollamur, and Fuji all sell to both crowds.

What changes is the thickness.

Greatmats sells 1-1/4 inch jiu-jitsu puzzle tiles for $2.29 a square foot, and they're built for groundwork. For throwing, look at 1-5/8 to 2 inches. Zebra pitches its 2 inch mat as firm enough for stand-up work with heavy cushioning for throws.

What mats cost

Mats are the biggest one-time cost a judo club has. Here's what the main US vendors charge.

US vendor prices, checked October 31, 2026:

That puts a 20 by 24 foot floor (480 square feet) at roughly $2,800 to $5,200, depending on brand and thickness.

The Fuji and Dollamur USA Judo mats are sold as home mats at 1-1/4 inches, so a club taking hard falls every night should look thicker. Stick to the 1-5/8 to 2 inch options and the same floor runs about $2,800 to $4,100.

Buying mats vs borrowing a gym's

Mats are also the one asset that moves with you.

If the rec center raises the rate or the church needs the hall back, your mats go in a truck and your club survives.

Price the Club So It Pays for the Room

A two-night rec-center club breaks even at about 13 members. Time for Ippon a Time to earn its terrible name and prove it.

Say our made-up club rents a rec-center room for two-hour sessions on Tuesday and Thursday nights.

That's about 17 hours a month, at an assumed $40 an hour. It runs on the USA Judo charter, carries the $750 minimum policy, and uses gym software on a small plan.

It has 25 members, about USA Judo's members-per-club ratio: 15 kids at $60 a month and 10 adults at $80. Those are our assumptions, and they sit in the middle of what real dojos post.

Los Angeles Tenri Judo Dojo charges $55 a month for adults and $45 for juniors. At Hyland Hills Judo in Colorado, everyone pays $85.

Delaware Judo & Ju-Jitsu charges $120 for adults and $85 for kids. Your town will be different.

Its month looks like this:

Ippon a Time Judo Club is made up. Mats, card processing, and the coach's certification and background-screen fees are left out of the monthly math. The Micro price runs on Gymdesk Payments, which adds a $5 monthly account fee.

Members pay their own federation dues and buy their own uniforms. Fuji's Single Weave Judo Gi, a common beginner pick, is $74.95.

The mats are a one-time hit. The hits on top of them are recurring.

The rec center has a basketball floor, so say Ippon a Time buys 23 Zebra 2-inch full-size mats (about 495 square feet) at $182 each. That's about $4,186.

At 25 members, the $866 left over each month pays for it in just under five months.

Thirteen is your first target. At 13, the club pays for itself.

At 25, it pays for itself and starts paying down the mats. At 40, the coach can start thinking about a raise, which in judo means new zori.

A full-time dojo costs a lot more. A lease of your own changes every line in that table, so run the numbers again before you sign one.

Run your own version with real quotes. The startup cost calculator handles the up-front list, and the break-even calculator finds your 13.

If you're borrowing money or going full time, put it all in a martial arts business plan.

Fill the Mat: Your First 25 Members

Judo's first members tend to be kids and their parents, grapplers who want to stand up, and adults who watched the Olympics once and got ideas.

Here's what gets them through the door in year one.

Kids and families first

Kids are the base of a lot of judo clubs.

They also bring siblings, and their parents become part of the club even when they never step on the mat. Sasaki's annual trips to Japan take along white belts, black belts, and parents who don't train at all.

"Some, you know, parents never do judo. But they can see Japanese culture."

Build the kids program like it matters, because financially it does. The guide to designing a kids martial arts program covers age groups and class structure.

Answer your own phone

When Eric Mieles was in his 30s, he looked up judo in Orlando and called Sasaki Judo. He expected an assistant. Sasaki picked up himself.

"Just come in and do judo every day. Just do judo every day. Do judo every day."

Eric did. He's been a student for about ten years and now leads the daytime class.

You won't have a front desk in year one. Pick up the phone yourself and answer email the same day.

Then invite them to class.

Show the throws

Judo is the most filmable grappling art there is. A clean throw looks like a magic trick, even to people who've never stepped on a mat.

Danny Gutman's plan at ITC is exactly that: short clips of different throws on Instagram, TikTok, and Facebook.

Film the throws and the kids' class, with permission, and put the schedule and price in the caption.

Keep Judoka Past the Bruises

Getting people in the door is one job. Keeping them is the harder one.

Judo is going to stay hard. The first few months just have to be survivable.

There's more from Danny on that in why judo is harder.

What helps:

• Falls before throws. Teach beginners to land before anyone throws them. The guide to teaching judo for beginners covers what a good first class looks like.
• A competition calendar. ITC won't promote a judoka past green belt if they never compete, because the coaches can't tell where their skill level sits. Danny pointed out that USA Judo has a slower non-competitor grading path for older students, so put grading days on the calendar for them too.
• A plan for summer. Danny says attendance dips every year when people head to the beach and picks back up after New Year's. Plan for it with a summer camp, a kids' tournament, or a bring-a-friend month in July.

The guide to a new member's first 100 days walks through the check-ins that keep beginners coming back.

Run the Club, Not the Spreadsheet

Nobody becomes a judo sensei for this part.

Every step above makes paperwork, from federation memberships and waivers to family bills, belt tests, and tournament rosters. Sasaki said as much to Alex.

Danny Gutman does his Gymdesk work (looking at leads, setting up automations) at night after his son goes to sleep.

Whatever you use, a judo club needs family billing and waivers that renew every year. It also needs rank tracking that counts time in grade, and a record of who competes.

Where Gymdesk fits:

• Family billing. One family account covers the kids and the parent who finally gave in. Pricing adjusts automatically when someone joins or leaves.
• Waivers at signup. Members sign during online registration, so nobody gets chased on the mat. When the annual re-sign comes around, send it to everyone at once and block check-in until it's signed.
• Rank tracking. Attendance counts toward promotion, with time-in-rank and skills tracked per member, so you know who's ready before test day.
• Competition records.Smoothcomp Connect is built into Gymdesk at no extra cost. Connect the club once, and when members compete at Smoothcomp events, their results come back onto their Gymdesk record, match by match. For a club that won't promote past green without competition, that history is in one place. Gymdesk and Smoothcomp are now one company.

Gymdesk's Micro plan is $75 a month on Gymdesk Payments for up to 50 members, which covers Ippon a Time with room to double.

To compare options first, the roundup of the best judo software lays out the field.

Start With 25 and a Good Mat

On day one, a judo club needs a charter, a certified coach, insurance, a waiver for every member, and a floor that can take a throw. The lease can wait.

Then it needs 13 members to pay its bills, and about 25 to start paying off the mats.

Start on the rung you can afford, and fill it with families. Move up when there's a waiting list.

If you'd like the admin handled from your first member, take a look at Gymdesk's martial arts software.