Projects

A selection of baseball tools and research I’ve worked on.

Platforms

Agent+Released · v0.4.0Baseball research · AI workflow · Evidence boundaries

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Babson AnalyticsIn season · Internal to BabsonLive charting · Trackman · Player development

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Fastball Deceptiveness IndexLive Shiny appStatcast model · Deceptive value · Interactive Shiny app

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Research

FDI Midseason UpdateJul 2026Does last year's FDI still predict this year's miss?Re-ran FDI on refreshed 2026 data. Checks year-over-year stability and whether 2025 scores still track strikeout, whiff, xwOBA, and SIERA.

Marcelo MayerJun 2026Where a top prospect's contact value is leakingBreaks down Mayer's .216/.285/.303 rookie slash with kNN comps: mechanics and approach issues after contact, and what looks fixable.

FDI IntroApr 2026The article that launched the Fastball Deceptiveness IndexIntroduces FDI and DVI from Statcast release and movement data: how deception can hide inside ordinary ERA lines.

Pitch Command SystemMar 2026Build log for the Command+ work behind Babson chartingHow a two-click video command tracker became real-world inches and a Command+ score. The build path that fed Babson Analytics.

Umpires and ABSNov 2025Run value lost to missed calls, and what challenges buy backCounts runs lost to incorrectly called strikes from 2023 to 2025. Arozarena leads the board. A 10% challenge rate is worth about 5 to 6 wins over three seasons.

Whitlock ArsenalOct 2025Pitch shape and sequencing behind a bullpen reboundTracks Whitlock's arsenal changes across 3,733 pitches: shape, sequencing, and count patterns in the 2025 rebound.