MLB Pitch Quality Calculations

QOPA Search Form

Calculation Notes

Legend of Pitch Types

CH Change Up CU Curveball
FC Cutter Fastball FF Four Seam Fastball
FS Split Finger Fastball FT Two Seam Fastball
KC Knuckle Curve KN Knuckleball
SI Sinker SL Slider
FB Fastball = {FC, FF, FS, FT, SI} OS Off Speed = {CH, CU, KC, KN, SL}

Abbreviations

QOPA Quality of Pitch Average L.Break Lateness of Break
QOPV Quality of Pitch Value H.Break Horizontal Break
NP Number of Pitches V.Break Vertical Break

QOPA Scale MLB logo

QOPA Scale Diagram
PitcherID Name QOPA NP CH_
QOPA
CH_
NP
CU_
QOPA
CU_
NP
FC_
QOPA
FC_
NP
FF_
QOPA
FF_
NP
FS_
QOPA
FS_
NP
FT_
QOPA
FT_
NP
KC_
QOPA
KC_
NP
KN_
QOPA
KN_
NP
SI_
QOPA
SI_
NP
SL_
QOPA
SL_
NP
Pitch Types NP QOPA QOPA% Rise% L.Break% H.Break% V.Break% Location% Velocity%
Year QOPA NP CH_
QOPA
CH_
NP
CU_
QOPA
CU_
NP
FC_
QOPA
FC_
NP
FF_
QOPA
FF_
NP
FS_
QOPA
FS_
NP
FT_
QOPA
FT_
NP
KC_
QOPA
KC_
NP
KN_
QOPA
KN_
NP
SI_
QOPA
SI_
NP
SL_
QOPA
SL_
NP
PitcherID Name QOPA NP Total NP
PitcherID Name QOPV NP Pitch Type