FPM is an impact metric for the EuroLeague. It asks a simple question: when a player is on the floor, is his team better, and how much of that is down to him?
The box score can't answer that on its own, and neither can the scoreboard. FPM uses both, each one keeping the other honest.
Zero is an average player. Around +2.5 is top-20 territory, and the best get to +6 or +7. Every season since 2007‑08 is on the leaderboard.
The about page covers the method and what it can't measure. The data is on GitHub, free for anyone to use.
GitHub repository