BF

Batters faced: a pitch carrying an events value, excluding truncated_pa and game_advisory.

Agreement with Savant

Recorded, but not parity-enforced. This column is stored and shown; no agreement with Savant is claimed for it.

Shown for: pitcher.

Formula

sum(pa)::int — the same accumulator as pa, read as batters faced on the pitcher side: a pitch carrying an events value, excluding truncated_pa and game_advisory.

Inputs

plate_appearances.pa

Era caveats

Three tracking systems across the seasons shown

Rows carry a tracking_era of trackman, hawkeye or hawkeye_bat (migration 001). The systems differ in what they measure and how precisely, so long spans cross a measurement boundary as well as a rule one.

Version history

2026-08-08 — Added with the Explorer's first slice. (runbook §11)