6 short tests on court, about 30 minutes. Count how many attempts land where they should, and the app estimates your level for each skill. Skip any test you can't do today.
Deep serves
10 attempts · solo
Deep returns
10 attempts · needs a partner
Unattackable dinks
20 attempts · needs a partner
Third-shot drops
20 attempts · needs a partner
Mid-court resets
20 attempts · needs a partner
Blocking hard drives
10 attempts · needs a partner