Arizona still holds a No. 1 seed

Despite hitting a road block against ASU, Arizona maintained its hold on a No. 1 seed. Rick Scuteri/USA TODAY Sports

Welcome back to the expanded edition of Joe Lunardi's Rundown. This series features tournament odds, an element that will take you deeper into Bracketology. Bracketology provides a snapshot of how the bracket looks on a specific day, but through the use of Lunardi's extensive database of previous seasons, tournament odds tell you how the bracket is likely to look come Selection Sunday.

Top-line report

One week after we declared the race for No. 1 seeds the most crowded in recent memory, the inevitable has occurred.

A bunch of contenders hit a wall. In particular, Michigan State finally suffered a bad loss in addition to its many injuries. And Villanova learned that its January wipeout at the hands of Creighton was no fluke when the Bluejays repeated the favor on Sunday.