Rpi

I implemented the published RPI formula and the rankings didn’t match NCAA’s. A grid search against their published top-25 shows the actual weights are different — opponents’ records weigh more, the location bonus is milder, and opponents’ records enter the formula without any location adjustment.

A plain-English walkthrough of the Rating Percentage Index — the three components, the strength-of-schedule feedback loops, why the formula shapes non-conference scheduling decisions across the sport, and why recomputing it is genuinely expensive.