Have a brief FAQ
This would explain the basics of each function and, importantly, win rate
3 comments

AdminRob Renaud (Programmer/Parsing Monkey/Fake Statistician, Councilroom.com: Dominion Statistics) commented
Yeah, that's mostly what it means.
Also if you are in a 3p game, and neither you nor your opponent win, you'll both get a "tie."

MICHAEL DOWNEY commented
Can you explain the win record? for instance, if it says 12101, does that mean that i won 12 games, lost 10 games, and what is the third number, tie?
Thanks!

AdminRob Renaud (Programmer/Parsing Monkey/Fake Statistician, Councilroom.com: Dominion Statistics) commented
It's there already on the right side, below the graph.
Understanding the graph
Win rates
Win rate is a generalization of winning probability for multiplayer games.
A win in a 2 player game is worth 2 points, a 3 player game is worth 3, and so on. Someone who plays only 2 player games and wins every time will have a winrate of 2; a 2player gamer who loses every game has a winrate of 0; a 2player gamer who wins exactly as often as expected (half wins, half losses) has a winrate of 1.
The win rate of an event is the average number of points for that event. So an event that is uncorrelated with winning will have a win rate of 1.0, and events correlated with winning have a win rate of > 1.0, and losing with < 1.0.