aStuff+

April + May 2025 aStuff+ Recap

Analyzing top aStuff+ gainers and notable performances from the start of the season.

May 31, 2025 • Adam Salorio

Introducing aStuff+ v2

Using velocity, spin, location, movement, and arsenal effects to measure pitch effectiveness.

Mar 17, 2025 • Adam Salorio

aStuff+ v2 Preview

Incorporating arsenal effects into pitch modeling, along with other notable adjustments.

Jan 24, 2025 • Adam Salorio

2024 aStuff+ Recap

Analyzing top aStuff+ gainers and notable performances from the regular season.

Oct 10, 2024 • Adam Salorio

Analyzing aStuff+ by Pitcher Handedness

Are pitch models biased against left-handed pitchers?

Aug 8, 2024 • Adam Salorio

Average aStuff+ by Park and Hitter Leaderboards

Analyzing the impact that altitude and environmental effects have on pitch quality.

Jun 22, 2024 • Adam Salorio

Introducing My Stuff+ Model

Using velocity, spin, and movement characteristics to measure pitch effectiveness.

May 30, 2024 • Adam Salorio

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