Of the 5.9 million brackets filled out in the ESPN Tournament Challenge, only two accurately predicted the Final Four (Butler, Virginia Commonwealth, Connecticut and Kentucky).

Related Fact: If UConn defeats Kentucky on Saturday, Mark Arminio wins the mental_floss NCAA pool. If not, I win—and I correctly predicted exactly zero Final Four teams. We have no future in sports gambling.

[Source: @ESPNResearch. Photo credit: John Fetcho/ButlerSports.com. See previous Numbers of the Day here. ]