Just to be clear . our performance against our opponents does not affect their OWP contribution to our RPI. As such, Marshall contributes .38710 (12-19 record . not 12-22) (with a game weighting of 3) to our OWP. Also, you sum/weight the winning percentages in determining OWP . not a summation/weighting of the w-l records themselves. As an example, an opponent with a 2-4 record would have the same contribution as a 20-40 opponent (same # of games played).
Finally, not to make any math-averse heads explode . but the end result in the RPI calculation is that winning is just over 25% of the formula . which also means that SOS (and thus OWP and OOWP) is a little less than 75%. This is due to the fact that our own winning percentage contributes to our OOWP.
Brian
Thanks for clearing that up. What percentages do think the 3 factors should be?? 33.3% for each? 1/3
Brian has long advocated for dumping the RPI. That likely won't happen soon. The 25/50/25 split is obviously out dated. Cajuns winning the league and having an RPI in the 50's is possible and evidence of the flaws in the current system. Therefore, if you have to have 3 factors, I propose the split be 40% your perfomance, 35% your opponents performance, and 25 % the performance of the opponents of your opponents. That way the thing you control the most has the most impact. It boggles my mind that the only thing you have control over (your perfomance) is rated equal to something you have virtually no control over (opponents of opponents) in the current system. I would like to see someone recalculate the RPI rankings based upon my proposal. I know I am unlikely to see that result anytime soon.
No, not the eye test. I am not going to get into alternatives here . as I have discussed this ad nauseum over the years (both possibilities I have suggested as well as analysis of other systems). I was simply highlighting that you do not put lipstick on the pig. The RPI system is ridiculously trivial and not statistically sound. It is not something you try to fix as it does not have a proper foundation.
Brian
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