Slurve

aka SV (Statcast code)

A slider-curve in-betweener. It breaks on a diagonal, dropping more than a slider but sweeping sideways more than a true curve. The name fits any breaking ball that won't sit cleanly in either bucket.

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

Thrown as a slider/curve hybrid — gripped and released somewhere between the two so it carries traits of both rather than committing fully to slider tilt or curveball topspin.

Reputable analysisSlurve (SV) — MLB.com Glossary, Pitch Types

What it does

Breaks diagonally, with more drop than a slider but more sideways sweep than a 12-6 curve, generally moving down and toward the pitcher's glove side; Statcast formalized it as one of two new pitch classifications (alongside the sweeper) in 2023.

Official dataSlurve (SV) — MLB.com Glossary, Pitch Types

Who throws itOften applied to breaking balls that sit between a true slider and a true curve

Study this first

The slurve sits between a slider and a curve. The filed Slider is the harder, tighter parent to study first; the slurve just lets the break travel more sideways and drop more than a true slider.

Reputable analysisSlurve (SV) — MLB.com Glossary, Pitch Types

Filed specimenSlider

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.

Others in the breaking ball

Slider Gyro Slider (Bullet Slider)Sweeper Slutter (Cut-Slider)Curveball 12-6 Curveball Knuckle-Curve (Spike Curve)Slow Curve Screwball Knuckle-Slurve ("knuckleslurve")Slip Pitch Deathball