Basketball Efficiency Rating and Analysis
I'm a keen Basketball player and in the past have coached quite a bit. All coaches want to know how their team is performing, as individuals and as a team, so they can address training in those areas which need attention. There are any number of readily available formulas out there which may be of help, the one I like the most being either a linear weighted....
Player Efficiency Rating ( PER )
or a basketball version of VORP ( Value Over Replacement Player ):-
Here is a simple VORP = (pts+0.75*orb+0.25*drb+0.5*ast+stl+0.33*blk)/(1.5*(fga+(.44*fta)+tov + ((0.75*orb+0.25*drb+0.5*ast+stl+0.33*blk)/2)+(mp/4))).
Most people will be familiar with PER, though it can be more easily dealt with if you take each playing element and give it a weighting, then calculate your total. I do it that way, here is someone who has done it also, though his weightings you may like to change as they appear incorrect ( at least at my examination ):-
The link to explain this methodology
[ FGM x 85.910+ Steals x 53.897+ 3PTM x 51.757+ FTM x 46.845+ Blocks x 39.190+ Offensive_Rebx 39.190+ Assists x 34.677+ Defensive_Reb x 14.707- Foul x 17.174- FT_Miss x 20.091- FG_Miss x 39.190- TO x 53.897 ] x (1 / Minutes).
These calculations are worked from readily available game statistics. But they don't tell the whole story as they tend to be offensively biased and don't accurately measure defensive specialists, who we'll all agree are pretty important. Thinking about this I've come up with my own system and weightings for each factor. I generally work it as a ratio not a raw number, but this is the way I look at the game:-
