Side advantage
Measured from match demosMirage 57.5% CT slight
The gap closes in pistol rounds; the advantage may come from economy and half order rather than from the map itself.
Dust II 50.7% Balanced
The data is not enough to say there is a side advantage here; both sides stay within the margin of error.
Inferno 48.0% Balanced
The data is not enough to say there is a side advantage here; both sides stay within the margin of error.
How are these numbers measured?
The winning side of a round is read from the round-end event in the match demo; there is no guessing or inference. A map needs at least 200 rounds of records to enter the list.
The margin of error is a 95% confidence interval: 1.96 × √(p(1−p)/n). Fifty-three percent sounds like an advantage, but in a sample of 200 rounds the margin is ±7 points and 50% falls inside it — in that case no advantage is declared and it reads "Balanced".
The pistol column measures rounds where the economy is equal, which makes it the purest indicator of the map's structural balance. Its gap from the overall rate helps separate an advantage that comes from the map from one that comes from the economy.
The pool consists of matches from players who linked their accounts. It does not represent professional matches or the whole player base; the skill distribution can affect the result.