Louisville earned the top overall seed in the NCAA tournament Sunday, while Kansas, Indiana and Gonzaga also received No. 1s after a topsy-turvy regular season and another round of weekend upsets.

We've run oodles of winners and losers columns over the course of the college basketball season, but none as consequential as the one you're about to read.

Selection Sunday. Zero Hour.

Here we're breaking down all the biggest headlines from the newly minted Field of 68, including who made it, who didn't and whose path to glory looks smoothest.

Onward, to Madness!