How the numbers on this site are built, and what happened when they were tested.
How It's Made
The full path from raw minor league stat lines to a similarity score — how seasons are turned into z-scores, how players are weighted against each other, and what the outcome distribution on a player page actually represents.
White Papers
Longer write-ups on the specific choices behind the model — including the ones that turned out to be wrong. Each is a fact-based look at a single constant, equation, or value, and why it ended up where it did.