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This app is entirely vibe-coded. if you find something broken.

Data powered by Statcast

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Built by Robert Stock

BetaNot affiliated with or endorsed by Major League Baseball. Stuff+, DLoc+, and Pitching+ are Stockyard models -- not the Eno Sarris variants or official MLB statistics.

Pitch Calculator

Enter pitch characteristics from a Trackman readout to get a Stuff+ grade. Explore what-if scenarios by adjusting velocity, spin, and movement.

Pitch Type

4-Seam

Pitcher Hand

Velocity

mph

Spin Rate

rpm

Extension

ft

Release Height

ft

Release Side

ft

iVB

in

iHB

in

Arm Angle (optional)

deg