A quick look at those women's results from Wisco suggests that Cornell's ranking is unlikely to change much: all the teams they beat were lower-ranked (going into the meet) than they. And even though Cornell was reasonably close to a couple of highly-ranked teams, they didn't beat them.
By contrast, the Providence team that just missed beating Cornell should improve a lot in the national poll, having beaten quite a few teams that had been ranked ahead of them. Ditto for Yale--some nice scalps on their belt, and their ranking should improve some.
Did both the men's and women's races have major falls, btw? I've only heard about the men's...
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I plan to head to tomorrow's meet at Princeton. Supposed to be (literally) freezing, but I'll hope to cope. Columbia's JVs are outstanding and should have a shot, but the hosts should also be competitive in the field. Evidently Cornell will be busing some runners down, as well.