Sports analytics with the data out in the open.

Sparvi publishes analysis meant to change a decision, not just describe a game. Every finding comes with the data behind it, in an explorer you can filter and search, so you can check it yourself or come to a different conclusion.

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Latest

Two weeks of swing decisions tells you something. Two weeks of results doesn’t.

Which short-window Triple-A numbers carry over to the next two weeks, and what that means for building a player development report coaches can trust.

Midseason pitch changes mostly stick. Lost fastball velocity mostly doesn’t.

When a pitch’s velocity or movement changes during the season, how much is still there the next spring? Movement changes hold; fastball velocity losses mostly come back.

Stuff predicts next season better than results do

A pitch-quality model built only on velocity, movement, and release predicts a pitcher’s next season better than his run value does, and it works on Triple-A pitchers too.

Tools

Baseball · Tool

Sports analytics with the data out in the open.

Latest

Two weeks of swing decisions tells you something. Two weeks of results doesn’t.

Midseason pitch changes mostly stick. Lost fastball velocity mostly doesn’t.

Stuff predicts next season better than results do

Tools

Stuff+ leaderboard

Triple-A explorer

Glossary