Performance testing that spots the signal — so you can make the change.
Record fitness tests, track growth and maturity, and share clean reports. TestMi watches the data and flags what needs your eye — with accurate consent and safe encryption. For athletes of any age, their data is owned by your club and never sold.
Free during public beta · No card required
We're building TestMi alongside our founding clubs — your feedback shapes what comes next.
Jan 2026 Testing
TestMi| Athlete | Age | G | 20m | CMJ | Yo-Yo | Sprint Agil. |
|---|---|---|---|---|---|---|
| A. Johnson | 14.8 | M | 3.18s | 38.2cm | 19.4 | 9.42s▼ 0.21 |
| M. Okafor | 13.1 | M | 3.27s | 42.7cm | 21.2▲ 1.8 | 9.08s |
| L. Bennett | 12.4 | F | 3.55s | 31.4cm | 17.0 | 9.71s |
| R. Patel | 15.6 | M | 3.21s | 39.8cm | 20.1 | 9.50s |
Regression beyond the norm band
Sprint Agility · last 4 tests
9.21s → 9.42s · beyond typical error
Potential interventions:
- Target the affected capacity
- Investigate the cause (growth, load, illness)
Built & trusted with coaches at
“Being able to see the whole squad's growth and maturity status in one view is a game changer. You can spot straight away who's in a growth spurt and may need additional observation or load adjustment.”
Jake P.
Lead Strength & Conditioning Coach, Move4Sport
“I can enter test data on my phone at the track and the reports are ready to share with parents before I've left the session. It's completely replaced our spreadsheets.”
Gareth S.
Head Coach, Move4Sport
See it in action
Real charts, real insights — here's what your athlete reports look like inside TestMi.
Jamie Davies
Age 13 · U14 Squad
Interactive preview with sample data
Your data is protected
Working with children's information requires the highest standards. TestMi is built with data protection and safeguarding at its core.
- All data is encrypted when stored and when sent
- You control who can see each athlete's information
- Parents give consent through secure links that expire automatically
- Passwordless magic link sign-in keeps accounts secure
“As a parent, knowing that my child's data is handled properly gives me real peace of mind. The consent process was straightforward and I could see exactly what was being collected.”
Magdalena M.
Parent of Athlete
Understand athlete development
See how each athlete compares to others of the same age and gender. Track growth and maturity to support training decisions.
- Compare results to age and gender-matched data
- Monitor biological maturity using established methods
- Track growth rates and predict adult height
- See injury risk indicators based on growth phase
- Group athletes by biological age for fairer competition
Designed for coaches
Built by people who run youth sport programmes. TestMi fits into your existing workflow, not the other way around.
- Follow test protocols with warm-up cues and rest timers
- Enter data on your phone at the training ground
- Share reports that parents can understand
- Export data to spreadsheets when you need to
- Offline data entry — record results without signal, sync when you're back online
Ready to track your athletes properly?
Join the sports organisations already using TestMi to run testing sessions, monitor growth and maturity, and share reports with parents.
Start now for free →