FB/LD EV / FB/LD EV

Batter

Average exit velocity in mph on fly balls and line drives, bunts excluded. This is a velocity, not the share of batted balls that were fly balls or line drives — Savant publishes it under the bare name 'fbld', which reads as a share and is not one.

Agreement with Savant

Checked nightly. Agreement tolerance: ±0.

Pitcher

Average exit velocity allowed in mph on fly balls and line drives, bunts excluded. This is a velocity, not the share of batted balls that were fly balls or line drives — Savant publishes it under the bare name 'fbld', which reads as a share and is not one.

Agreement with Savant

Checked nightly. Agreement tolerance: ±0.

Shown for: batter and pitcher.

Formula

sum(fbld_ev_sum) / NULLIF(sum(fbld_n), 0) — mean exit velocity on non-bunt fly balls and line drives. A velocity, not a batted-ball-type share.

Inputs

pitches.launch_speed
plate_appearances.fbld_ev_sum
plate_appearances.fbld_n

Era caveats

Bunts are excluded

Every exit-velocity figure excludes bunts, matching Savant's hfFlag=is..bunt search flag. That flag reproduces Savant's published exit velocity exactly; velocity cutoffs and the sac_bunt column do not. (runbook §16)

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

2026-08-31 — Added with the spine slice. Savant's column is named fbld, which reads as a batted-ball-type share and is not one — the _ev suffix here says so on sight. (runbook §51)