Performance Tool

--km/h --rpm --° launch --cm net --

Racket — unstrung spec

Stroke — the hit

Impact point centre

Exit speed

-- km/h

Spin

-- rpm

topspin

Launch angle

--°

Net clearance

-- cm

Comfort (vibration)

-- /100

at the node

Shot anatomy

Ball flight — to scale

Incoming Outgoing Swing path Racket tilt

Performance Tool

--km/h --rpm --° launch --cm net --

Scenario

Test preset

Input mode

Direct: you impose exit speed, launch angle and spin. Bridge: they are derived from the racket-ball impact (swing + tilt).

Racket

Head size (cm²) 645

String pattern

String

Tension (kg) 23

Mass (g) 300

Balance (cm) 32.0

Swingweight (kg·cm²) 290

Twistweight (kg·cm²) 14.0

RA stiffness 65

Stroke

Incoming ball (km/h) 60

Incoming ball angle (deg) -10.0

Ball path vs horizontal at contact. Negative = descending. Typical −10 to −25° when taken on the drop, ~0° near the peak, up to +15° on the rise.

Racket-head speed (km/h) 75

Swing path (deg) 30.0

Face tilt from vertical (deg) 10.0

TWU/Cross convention: angle from vertical. Positive = closed face. Used by the impact bridge.

Swing mode

Trajectory inputs

Exit speed (km/h) 110

Reference computed at hoop centre: --

Launch angle (deg) 8.0

This is the ball's departure angle, not the swing angle.

Flight spin (rpm) 2500

Reference from estimated rotation: --

Spin type

Impact height (m) 1.00

Aerodynamic model

Display options

Show court Show apex Show labels

Live result

Exit speed

-- km/h

Spin Estimation

-- rpm / -- rpm

flight / estimated

Launch angle

--°

Net clearance

-- cm

Spin potential (gear)

50.0

low mid high

Landing point

Stringbed maps

Efficiency (ACOR) — click / drag to set contact point ✛

ACOR

Outgoing ball speed

140

km/h

Ball flight

Ball trajectory

Computing

Swing → launch bridge

Apex / time / impact

Impact point — comfort

--/100

Exit speed

Spin Estimation

Launch angle

Net clearance

Spin potential (gear)

Landing point

Efficiency (ACOR) — click / drag to set contact point ✛

Outgoing ball speed

Ball trajectory

Swing → launch bridge

Apex / time / impact

Impact point — comfort

Impact geometry — live angles