Shuuto

aka shoot · shuto · inshoot

A Japanese name for a pitch that runs and sinks in toward a same-handed hitter, boring in on his hands. Despite the exotic label, players who caught it say it's basically a two-seamer, the arm-side mirror of a cutter.

Schematic baseball cover. This pitch has no filed seam geometry yet — the grip and shape below are sourced in words, not measured here.

The grip

Typically a two-seam grip released with a pronated wrist to put arm-side run on the ball — the same family of action a Western pitcher would call a two-seamer or sinker.

Reputable analysisThe shuuto — The Hardball Times / FanGraphs (arm-side run, 'just a two-seamer,' opposite of a cutter)

What it does

Runs and sinks to the pitcher's arm side, boring in on a same-handed hitter. Bobby Valentine described its action as the opposite of a cutter; Hiroki Kuroda's catcher Russell Martin flatly called it 'just a two-seamer.' That is the core point: despite the exotic name, it lives in the fastball family as the arm-side mirror of the cutter.

Reputable analysisThe shuuto — The Hardball Times / FanGraphs (arm-side run, 'just a two-seamer,' opposite of a cutter)

What it really is

A Japanese (NPB) pitch name that Western tracking systems generally fold into the two-seam fastball. The label is loose — it can describe almost any arm-side-tailing pitch — which feeds a broader NPB-vocabulary tangle, the same naming murk that surrounds the gyroball, where slider, two-seamer and 'gyro' classifications blur into one another.

Reputable analysisShuuto — Grokipedia (NPB pitch, loose arm-side-run label, two-seam classification)

Who throws itHiroki Kuroda, Masumi Kuwata, Noboru Akiyama, Yu Darvish

Basic file

This pitch has a sourced one-line grip and movement and an honest explanation — not yet a filed specimen with authored grip geometry and a full craft chapter. A fuller breakdown is coming. Sourced, not corrected.