Talk about an impressive debut for NET. Of the 1-4 seeds, 14 of them advanced to the S16. Only Kansas and (a Wade-less) Kansas State failed.
This amount of chalk is almost unprecedented. Looks like the same exact result happened once before in 2009, where the S16 regions were 1 2 3 4, 1 2 3 4, 1 2 3 5, and 1 2 3 12.
I picked a ton of chalk this year - got 13 of the S16. Missed only on Marquette (Fl State), Wisconsin (Oregon), and Cincinnati (Tennessee).