MLB / Batter contact

Batter exit velocity: P90 versus mean

Subtracts each batter's mean recorded exit velocity from the 90th percentile of that same recorded launch_speed series.

Derived analysis485 published rows5 fieldsDate varies or is unrecorded; see scope

Published measurements

Choose a measurement

MeasurementPopulationOrder

485 matching rows; 485 contain p90 minus mean exit velocity.

CSV includes 485 matching rows, all fields, and source context; missing measurements stay blank. Published source dates and row provenance are included when available; structured provenance uses JSON cells.

Measured rows: 485 / 4850 unavailable
Median: 19.4 mphMiddle ranked value
Middle 50%: 18.4 mph to 20.6 mph25th to 75th percentile
Observed range: 14.2 mph to 24.6 mphMinimum to maximum

Summaries describe the filtered rows with equal row weight. Row counts are not independent game or event counts.

Measurement availability5 / 5 fields have values

Reference population: All published groups. 485 rows published.

Text search does not change this reference population.

Availability describes published values only. It does not establish data quality or independent game counts, and measurement windows can differ.

0 mphP90 minus mean exit velocity24.6 mph

Showing 16 of 485 matching numeric rows. Open a row to inspect all its fields. Rankings apply only to the published subset.

01 / Interpretation

What this measures

Positive values place the recorded 90th percentile above the recorded mean; negative values place it below. Inspect both operands and the recorded-exit-velocity row count with the difference.

02 / Calculation

P90-minus-mean (mph) = published exit_velo_p90 - published avg_exit_velo; both operands summarize the same non-missing launch_speed series and are published to 0.1 mph.

Use the table to inspect available fields and the source JSON to trace the formula inputs. CSV percentage values are stored as fractions.

03 / Population & limits

485 valid rows from 485 published batter entries; source eligibility is at least 300 pitches faced in 2025; latest global input date 2025-09-28; public artifact generated 2026-07-23.

The producer drops missing launch_speed values and does not load event, type, or description fields. The support count therefore means rows with recorded exit velocity; it does not establish balls in play, official batted-ball events, or whether fouls are included. The input cutoff is global rather than batter-specific, and no earliest-date, completeness, or game-type audit is published. Both operands are rounded to 0.1 mph, so the derived difference inherits that precision. This is a historical description, not a forecast.

04 / Source & method references

Published source JSON Published MLB batter-atlas method Published MLB batter atlas

References explain ingredients and prior methods. They do not validate this derived analysis or establish its originality.