Mah Ying Qi
KL  UTC+8
Shape a tennis serveEsc to close
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Trajectory room · frontend physics

Shape the serve.

Change the contact, launch and spin. The court answers with the path—not a coaching score.

inInside the service box
Net
+27 cm
Landing
17.21 m
Flight
0.40 s
Estimated flat serve trajectorySide and overhead views of a serve that lands 17.2 metres from the baseline and is classified as inside the service box.SIDE · HEIGHT (M)COURT · WIDTH (M)123netservice linecontact 2.87 m17.2 mtarget service box
Vertical-angle forgiveness0.89° nearest margin175 cm player · 287 cm estimated contact · 1.79° total window
wide edge -6.35°current -5.45°long edge -4.56°
What this estimate includes

A 57.7 g ball is stepped through gravity, quadratic air drag and a simplified Magnus force. The spin model uses a bounded lift coefficient, so it is useful for exploring tendencies—not predicting a specific player’s serve.

Still air, sea-level density, no racket impact model, bounce or biomechanical limits.