When the betting favorite wins, gamblers call it going chalk, an old-school slang term still common in an era where pools are now nearly ubiquitous. It might have to be bought in bulk for a tournament where Oregon is the only double-digit seed in the Sweet 16. Here's a look:
• The field has the top three seeds in each round in the Sweet 16 for only the second time (2009) since the bracket expanded in 1985. It's tied with 2009 for the most top-four seeds (14) in the Sweet 16.
• In the Round of 32, all 16 betting favorites won, often in blowout fashion — a first since the tournament expanded to 64 teams in 1985.
• The Atlantic Coast, Southeastern and Big Ten conferences gobbled up 12 of the 16 slots, with the ACC having a national-best five teams — led by top seeds Duke, Virginia and North Carolina — followed by the SEC's four and the Big Ten's three.
• According to NCAA.com, it has tracked millions of online brackets from ESPN, CBS, Yahoo, Sports Illustrated and FOX, and only one bracket is still perfect. A bracket named "Center Road" has somehow managed to correctly pick all 48 games so far, defying the odds which are 1 in 281,474,976,710,656.