Welcome to MatCalc 2.0
MatCalc 2.0 is a giant leap forward — a step-change in the predictive power of the Khamis-Roche calculator that coaches know and use in practice.
Why “2.0”?
Because we’ve taken a simple height-and-weight calculation and built something much more powerful:
- Predict key milestones in growth with greater accuracy
- Flag surface-level risk factors before they appear and start compounding
- Continuously improve through an evolving normative dataset and machine learning
Just like Web1.0 became Web2.0 — and now Web3.0 — MatCalc 2.0 is evolving. We’re building tools to give coaches and parents smarter forecasting and better squad management.
Where It Started
MatCalc was born from my curiosity as a coach.
Over 15 years working with athletes, I found myself asking:
- “They’re at 82% predicted adult height... but how long until PHV?”
- “If I wait even a month to test again, will I miss the risk window?”
- “How long does PHV actually last? Is it different for everyone?”
- “When can I take advantage of post-PHV training opportunities?”
I knew we could do more — so I set out to find a better answer.
Enter George — The Wizard
Collaborating with George has been a journey — and we’re thrilled to bring the results to market.
What Is MatCalc 2.0?
MatCalc 2.0 has two views:
- Parent view — parents manage athlete profiles and access.
- Coach view — coaches manage teams, track history, and upload data.
Parents link to your organisation via a secure code. Once connected, you can:
- View full test history for each athlete
- Add your own test results immediately
- Bulk upload 50+ measures in one click
- Share data with parents and export it instantly
Built for Coaches Like You
Our coaches’ platform is a game-changer for squad management. You can now group athletes by:
- Age group
- Biological age
- Maturation status
You’ll also receive automated retest reminders — so no milestones are missed.
Our Philosophy: Athlete-Centred. Parent-Owned.
We’ve designed MatCalc 2.0 with best-in-class coaching tools and the highest data privacy standards:
- Parents create and manage athlete profiles
- They control who sees what
- Unlinking removes coach access — but parents retain full history
- Fully aligned with GDPR for Category 1 children’s data
Why That Matters
Some organisations want to store athlete data directly. But doing so independently can create legal risk. MatCalc 2.0 is built to solve that:
- Industry-leading GDPR compliance
- Built with input from legal and data security experts
- Secure, scalable, and parent-controlled
Thanks for being part of this journey with us.
— The MatCalc Team