This NCAA basketball bonanza kicks off with the First Four Round – four games in each tournament to determine the final four teams in the Round of 64. It’s the last puzzle piece before the March Madness bracket is complete.

Four teams advanced to the Elite Eight on Thursday, coming one step closer toward booking a trip to San Antonio. In the West Region, Florida dominated Maryland and Texas Tech used a furious rally to get past Arkansas. Out in the East Region, Alabama kept making 3-pointers against Brigham Young and Duke's offense shined against Arizona.

No. 3 Texas Tech is improbably a win away from its second Final Four ever thanks to Darrion Williams. Williams tied the Red Raiders' Sweet 16 game vs. No. 10 Arkansas with nine seconds to go in the second half and then scored the game-winning basket with seven seconds to go in overtime for the 85-83 victory.

Half of the Elite Eight is set after top seeds Duke and Florida took down Arizona and Maryland, respectively, while Texas Tech ousted Arkansas in OT and Alabama rolled over BYU.