1 hour ago, ElDiablo14 said:

@binman could you please explain more about the player ratings? If I remember correctly you mentioned champion data.

How is that related to NBA's +/-? If at all.

This fantastic post from @WheeloRatings provides a detailed explanation, with examples, of how player earn and lose rating points (equity points) that aggregated up over a game gives them their player rating (or equity points for sub elements like ball winning and ball losing)

The shorter version is player ratings are a measurement of the direct impact each player has on a game through their actions that affect either the ball or ball-carrier, expressed as scoreboard impact. To get this measurement three factors are considered for each action:

• The location of the ball on the ground before and after the action

• The situation before and after the action

• The difference in Next Expected Score (NES) value before and after each action

Actions that increase a player's team's chances of scoring next (e.g., taking possession, moving the ball forward) give positive ratings and actions that decrease those chances (e.g., turning it over, missing shots at goal) give negative ratings. The PR each player gets at the end of a game is the sum of these ratings.

The two most significant categories of points players can earn are:

• Ball Winning: points from winning possession of the ball.

• Ball Use: points from disposal, including shots at goal, and carrying the ball

I'm not sure how similar the Champion Data player ratings system is to that used in the NBA - from memory the NBA has a basic measure of how impactful a player is measured by how many more points their team scores than their opposition when they are on court (or less as the case may be).

If i'm right the NBA version is much simpler as it doesn't measure each individual action a player has in game (eg kick, mark, goal point, tackle, one percenter, shepherd, tap on, free for, free against, clanger etc etc - the post i link above has all the ay a player can earn or lose rating points)

1 hour ago, layzie said:

Very telling that only 5 players attended centre bounces (6 if you count the few the Petty rucked in)

Only four in fact. I discussed that on the pod actually. We had 11 against freo, so massive difference - surely tactical.