Research

Sonny Gray’s Fit in ChicagoOct 2026 · Article · MediumCubs rotation fit · Pitch mix · Short-term dealEvaluates Sonny Gray’s fit for the 2027 Cubs through his pitch mix, ground ball profile and Chicago’s defense.

FDI Midseason UpdateJul 2026 · Article · MediumDoes last year's FDI still predict this year's miss?Tests whether FDI remains stable across seasons and relates to strikeouts, whiffs, xwOBA and SIERA.

Marcelo Mayer: What Looks FixableJun 2026 · Article · MediumWhere a top prospect's contact value is leakingUses comparable hitters to examine Mayer’s contact quality, mechanics and approach during his rookie season.

FDI: Fastball DeceptionApr 2026 · Article · MediumThe article that launched the Fastball Deceptiveness IndexIntroduces FDI and DVI, using Statcast release and movement data to study fastball deception and pitcher evaluation.

Pitch Command SystemMar 2026 · Article · MediumBuild log for the Command+ work behind Babson chartingFollows the development of the video command tracker and Command+ scoring system behind Babson Analytics.

Umpires, Hitters & ABSNov 2025 · Article · MediumRun value lost to missed calls, and what challenges buy backEstimates how missed strike calls affected hitters from 2023 to 2025 and models the value of ABS challenges.

Whitlock’s Arsenal ChangesOct 2025 · Article · MediumPitch shape and sequencing behind a bullpen reboundExamines Whitlock’s pitch shapes, sequencing and count patterns across 3,733 pitches during his 2025 rebound.