The Challenge Every Coach Faces
You’ve felt it – the frustration when promising judoka stop showing up. Drop-off, membership loss, and churn are common in dojos everywhere.
«Most martial arts dojos lose 50% of their students within the first year. The industry benchmark for annual retention is 70-80% – meaning 20-30% annual dropout is considered typical.» DojoTrack.
And here’s what most coaches get wrong: they focus all their energy on recruiting new members while their existing ones walk out the back door.
This is part 1 of a 3 part-mini series, written by Nik Fairbrother, 8th Dan tackling the problem of retention in dojos.
Part 1: Why Retention Beats Recruitment – and the Numbers to Prove it.
Part 2: The Forgetting Curve and Why it Matters in the Dojo.
Part 3: A Progression System for Kids’ Judo – Making Progress Visible
The Hidden Cost of Churn
Let’s talk numbers.
Say you run a dojo with 50 members. If you’re losing 33% annually (the industry average), that’s 16-17 members you need to replace every single year just to stay flat.
Now consider what it takes to recruit one new member:
- Marketing costs (ads, flyers, time)
- Trial classes (your time, mat space)
- Onboarding (explaining your dojo rules, setting expectations)
- Building trust (takes weeks or months)
Conservatively, recruiting one new member costs 5-10x more than keeping an existing one.
So those 16-17 members you’re losing? That’s costing you the equivalent of recruiting 80-170 new members in time, energy, and money.
Download the Retention Mini-Series – Five Winning Tips on How Coaches are Engaging and Retaining Judoka
Why Coaches Focus on the Wrong Thing
Recruitment feels productive. You see immediate results – a new face on the mat, a new signup form, a new payment.
Retention is invisible. A member who doesn’t quit doesn’t make a sound. You only notice retention when it’s gone.
Plus, recruitment is what everyone talks about. The retention conversation is quieter – but it’s where the real growth happens.
The Retention-First Dojo
What if you flipped the question?
Instead of asking «How do I get more members?» ask «How do I keep the ones I have?»
Here’s what changes:
You invest in systems, not just marketing. Progress tracking, achievement milestones, parent communication – these become priorities because they keep members engaged.
You create a self-propogating cycle: Happy, retained members refer new members. New members see the engaged community and stay longer. Retention drives recruitment, not the other way around.
This is how you improve dojo member retention, reduce judoka churn.
Why Member Retention Works Best
Let’s run the numbers again, retention-first.
Scenario A: Recruitment Focus
- 50 members, 33% annual churn
- Lose 16 members, recruit 20 new ones
- Net growth: +4 members
- Cost: High (marketing, trials, onboarding)
Scenario B: Retention Focus
- 50 members, reduce churn to 15%
- Lose only 7-8 members, recruit 12 new ones
- Net growth: +4-5 members
- Cost: Low (systems, engagement tools)
Same growth. Half the effort. And as the years go on the numbers compound.
What This Means for Your Dojo
You don’t need to choose between recruitment and retention. You need to prioritise retention so recruitment becomes easier.
The coaches I work with through Koka Kids who have thriving, growing dojos all have one thing in common: they prioritise keeping the members they have.
They make progress visible.
They engage parents proactively.
They create systems that make kids feel accomplished.
And when they do recruit new members, those members walk into a buzzing, engaged community – not an empty mat.
Start With One Change
You don’t need to overhaul your entire dojo. Pick one thing:
- Create a Progress Chart for your Beginners
- Invite parents to attend a Certificate Awards Evening this month
- Recognise one small win in every class
Small changes compound. One retained member this month becomes ten next year.
Want the Complete System?
If you’d like the ready-made tools to make retention easy – like technique task-sheets, progress and achievement certificates, and the complete system then I’ve put everything into the Koka Kids resource toolkit.
It’s the exact system that’s helped coaches like Stas Trener keep 300+ juniors engaged, Natasha Wolf reach different learning styles, and Sensei Alison Finn build a thriving family community.
Or download my free case study first: Five Coaches, Five Wins – real stories of how coaches improved retention in their dojos.
Nik Fairbrother is an 8th Dan judoka, Olympic silver medalist, and world champion. She created Koka Kids Resource to support coaches as they teach judo.
