Major conference races going down to the wire in final week

Here are your Fox News Flash top headlines for February 28

An unprecedented day of chaos led to changes nearly everywhere in the AP Top 25, except the top two spots.

It also tightened up major conference races across the country.

Heading into the final week of the regular season, the first-place team in every undecided league except the Pac-12 has a lead of one game or less. The Pac-12 hasn't been decided, either; No. 2 Arizona leads No. 16 Southern California by 1 1/2 games, but has three games this week.

In the Big East, No. 9 Providence clinched the regular-season title over the weekend.

To say it's going to be a big week in the AP Top 25 is an understatement.

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ACC

No. 4 Duke will play one of the biggest games in Cameron Indoor Stadium history on Saturday. Not only is it against North Carolina, it will be the final home game in the storied career of coach Mike Krzyzewski.

It could decide the ACC regular-season title, too.

The Blue Devils (25-4, 15-3, ACC) moved up three spots in this week's poll and gave themselves a one-game lead over Notre Dame by beating Syracuse on Saturday.

Duke also plays at Pittsburgh on Tuesday in its bid to win the ACC regular-season title for the first time since 2010.

The Irish play Florida State on Wednesday, Pittsburgh on Saturday.

BIG 12

No. 3 Baylor took a big step in tightening the Big 12 race with its 80-70 win over No. 6 Kansas on Saturday. The Bears, who climbed seven spots in Monday's AP Top 25, then took over the conference lead by a half-game with Monday night's 68-61 win over Texas.

Baylor hosts Iowa State on Saturday.

Kansas (23-5, 12-3 Big 12) has three games left in its bid to win at least a share of its 20th Big 12 title in