For Youth S&C Coaches & Academy Leads
Stop managing maturation by memory
MatCalc turns height and weight measurements into automatic PHV predictions, injury risk flags, biobanding groups, and parent-ready reports — so the insight that's currently in your head gets into the hands of everyone who needs it.
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Everything you need to run data-driven development
Built by coaches, for coaches. Every feature solves a real problem in the weekly rhythm of academy and grassroots S&C work.
Automatic maturation reports
Upload a handful of measurements and instantly get PHV timing, predicted adult height, maturation stage, and injury risk — no spreadsheets, no formulas.
Squad & team management
Organise athletes into multiple teams. View your whole squad grouped by maturation band, biological age, or next retest date.
Injury risk flagging
Athletes approaching or in PHV are automatically flagged. Know who needs load management before the pain shows up.
Biobanding sessions
Generate maturity-balanced training groups from your squad in seconds. Save session lineups and rate athlete performance post-session.
Bulk CSV import
Upload 50+ athlete measurements in one go with automatic validation. Built for the real world of academy testing days.
Automated retest reminders
Never miss a testing window. MatCalc alerts parents when their athlete is due — so you don't have to chase.
Parent-ready reports
Share a clear, visual assessment with parents in one click. No jargon, no data tables — a report that actually gets read.
Fitness testing
Log fitness test results alongside maturation data. See performance in context — who's winning on biology, and who's genuinely ahead.
Load management
Track weekly training load by athlete. Spot spikes before they become injuries, and adjust across the squad in one view.
Growth velocity charts
Visualise each athlete's growth trajectory over time. See where they are in their curve, not just where they are today.
Biobanding tool
Instantly sort your squad for biobanded sessions using predicted adult height percentages. Drag, drop, save.
Athlete summary dashboard
Every athlete gets a personal maturation profile — test history, PHV window, predicted height, and risk status in one place.
Free · 3 minutes
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18 questions. A personalised result across the four areas where coaches leave time and athlete welfare on the table.
Up and running in under an hour
No implementation project. No IT department. Just data, insight, and better decisions.
Add your athletes
Register athletes manually, via CSV upload, or let parents create profiles and link to your squad via a secure code.
Enter or upload measurements
Height, weight, and date of birth. That's it. MatCalc does the rest — predictions, maturation stage, PHV timing, risk flags.
Use the insight
Plan training blocks around PHV windows, run biobanded sessions, share reports with parents, and adjust load for at-risk athletes.
A letter to coaches
Welcome to MatCalc 2.0
MatCalc 2.0 is a step-change in what a maturation calculator can do. We've taken the Khamis-Roche method — the gold standard coaches already use — and built something around it that actually fits the way a real programme runs.
Why "2.0"?
Because the original MatCalc was a calculator. Useful, but just a calculator. MatCalc 2.0 is a full system — it predicts, flags, reports, reminds, and organises. It's the difference between knowing a number and knowing what to do with it.
- Predict PHV timing with greater accuracy, not just a snapshot
- Flag at-risk athletes automatically, before load becomes injury
- Organise squads by biological age in seconds, not hours
- Share parent-ready reports without building them each time
Where it started
MatCalc was born from 15 years of working with youth athletes and asking the same questions:
- "They're at 82% predicted adult height — but how long until PHV?"
- "If I wait even a month to retest, will I miss the risk window?"
- "How long does PHV actually last? Is it different for everyone?"
- "When can I start loading again after the growth spurt?"
The tools that existed either required a PhD to use or didn't answer the question. So we built something that did.
What we built
MatCalc 2.0 has two views — one for parents, one for coaches. As a coach, you get:
- Full squad visibility across every maturation metric
- Automated testing reminders so nothing slips
- Biobanding tools built for the way sessions actually run
- Load management alongside maturation data — so context is always there
- Parent-ready reports that take one click, not half an hour
Our philosophy
We built MatCalc 2.0 around one principle: the athlete comes first, and the parent owns the data. Parents create and manage athlete profiles. They control access. Unlinking removes your view — but the parent retains their child's full history. That's how it should work.
It's also why we're fully aligned with GDPR for Category 1 children's data. Not as an afterthought — as a design principle.
We believe every youth athlete deserves to be judged on what they'll become, not just what they are today. MatCalc 2.0 is how you make that happen.
— The MatCalc Team
Ready to run a smarter programme?
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