(AP) -- Welcome back to BracketRacket, your one-stop shop for all your NCAA tournament needs.
Today, we take stock of the appallingly low number of perfect Final Four picks, look back at how other underdogs have done in the national semifinals, and get John Beilein's thoughts on postgame transportation.
But first, a statistical basis for declaring that this is indeed the most unpredictable NCAA tournament in recent memory:
We've reached that point, according to a formula devised by Pete Tiernan over at BracketScience.com. Tiernan's formula - he calls it the "Madometer" - measures the unpredictability of each NCAA tournament since the field expanded to 64 teams.
On a scale of 0 to 100 - with 0 meaning the higher seed wins every game and 100 meaning the opposite - the 2013 tournament checks in at 21.8 so far. Tiernan says even if top overall seed Louisville wins it all, this year's tournament will break the previous Madometer record of 19.8, set in 2011. (That, you may recall, was...