Armside

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Avg EV / Avg EV

Batter

Mean exit velocity in mph over measured batted-ball events.

Agreement with Savant

Checked nightly. Agreement tolerance: ±0.

Pitcher

Mean exit velocity in mph against, over measured batted-ball events.

Agreement with Savant

Checked nightly. Agreement tolerance: ±0.

Shown for: batter and pitcher.

Formula

sum(ev_sum) / NULLIF(sum(ev_bbe), 0) — mean exit velocity over non-bunt tracked batted balls. ev_sum and ev_bbe are narrower than bbe: both exclude bunts, which is what makes the average, not just the rate denominators, bunt-free.

Inputs

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