I thought RPI was a measure of strength of schedule. No? I was wondering how an Ivy League team had such a high rating.

RPI involves SOS, but has other factors. It takes into account your own winning %, your opponent's winning %, and your opponent's opponent's %. In more recent years, road wins count for more in the RPI. Also, if you play a non-Division I team, the win doesn't count in an RPI...but I believe a loss does.

In years where the power conferences have "off-years" (such as this year's Pac-10, SEC, and even Big-12, etc), a mid-major often will leap-frog over a major (like VCU and UAB). But again, when a team has a good RPI but a bad SOS over 100 (like Harvard), it's usually a huge strike against them for an at-large bid.