FCS Rating 2.0: what changed and why
Survival without contribution is worth less, opening duels are worth more, and every historical number has been recalculated.
Data Desk · 6 min read
Every player rating on this site now uses FCS Rating 2.0. The old formula is gone, and all historical seasons have been recalculated under the new one, so the numbers on a Season 2 page are comparable to the numbers on a Season 5 page.
Three things changed. First, surviving a round without doing anything is worth substantially less than it was. Under the old formula a support player who lived through twenty rounds and did nothing in them finished the map above 1.00, which was indefensible.
Second, opening duels now carry separate weight on each side. Winning an entry as a T is worth more than winning the same duel as a CT, because the round-win probability it generates is larger. The old formula treated both identically.
Third, damage is weighted by what it enables rather than counted flat. Eighty damage that gets traded into a kill is worth more than eighty damage spread across three players who all survive.
The practical effect: AWPers and entry players rise, pure support roles fall by roughly 0.04 on average, and in-game leaders are about where they were. The biggest single movement in the recalculated history is an eight-place change in the Season 3 leaderboard.
The full methodology, including the round-win-probability model the weights are derived from, is published in the series rulebook.