Originally Posted by
GoneGolfin
No, it is 50% your opponent's WP and 25% your opponent's opponents' WP.
One of the significant problems is that it is too heavily weighted on your opponent's WP, without regard to how strong their respective schedule is. The opposite of what you state above. But it is more than that.
A 34/33/33 breakdown also does not improve it much. It is more of a problem with how many levels the formula descends than the weights of the fixed three level formula. You will never arrive at a reasonable approximation of strength with three levels. The RPI is a pedestrian formula that never should have lasted as long as it has. As a mathematician and researcher in machine learning and artificial intelligence (statistical learning), I actually feel it is an embarrassment to the field of statistics.
Brian (1981 called and it wants its RPI formula back)