Every tracker tells you your own numbers. This one tells you whether they're any good — because it sits next to a model that grades every call it makes in public, wins and losses alike.
Free permanently for early accounts — including this one.
Your tracker is ready. Save this link — it's the only way back to your book, and we can't send it to you again.
Tap a game on the board and it lands in your book, graded automatically when the game goes final. Log bets from anywhere else by hand — including books and markets we don't cover.
Most trackers show one or the other. Keeping both is the point, and the gap between them is usually the most useful thing on the page.
A real book from this tracker recently read −3.84 units and +$87 at the same time. Both numbers were right. One winner had been staked roughly ten times the size of the losses — so the bankroll was up while the betting was down. Had that single bet lost, the same record would show about −$100.
That's not a rounding error, it's the whole game: sizing decides outcomes at least as much as picking does, and a unit-only tracker will never show it to you.
The board calls every game, publishes a confidence number, and grades itself in the open — currently landing about a point under its own claim across hundreds of games. Your record sits beside that, on the same games, so "am I any good?" has an actual reference point instead of a feeling.
Free — and it stays free for everyone who joins now. If a paid tier ever arrives, early accounts keep everything they already have. No card, no app to install. We store the address you enter and the bets you log — nothing else. Read why we build it this way, or start with the Lab.