Barrel% against
Share of batted balls against this pitcher that were barrelled.
What Barrel% against means
The damage-suppression number. Elite run-prevention arms live under 5%; past 10% the home runs come whatever the ERA currently says.
What counts as a good Barrel% against
Lower is better — roughly .100 is poor, .075 average, .055 good, and .040 or better elite.
Also written
barrel_pct_against · barrel_against · brl_pct_ag · barrel_pct_ag · Barrel% Ag · Barrel%-a
Source
Statcast