BallCheck Lab

Which sport?

Each sport has its own ball rules and its own verdicts.

Which court?

The court changes how high a ball bounces, so results are always compared on the same court type.

Ball type

Ball label (optional) Temperature (°C)

Change court

Ball type

Drop the ball

Drop from

Test

Ready

./100

.Liveliness vs fresh

.Bounce height vs fresh

.COR at 3 m/s

.Impact tone

Bounce details

Study labels for this test

Brand and model Matches played

Measured rebound (cm) Drop height (cm)

Pressurizer Your verdict (ground truth)

Notes

Study log

No tests yet.

Settings

My default courtNot set

Advanced

Use sound in the verdict (beta) Sound weight (0 to 1)

When on, the score is (1 minus weight) times liveliness plus weight times firmness. Off by default until the study shows sound adds accuracy. On iPhone, Safari may filter high frequencies.

Everything stays on this device. Engine .