PARADISE ISLAND, Bahamas (AP) - Wisconsin Badgers coach Greg Gard wanted his 25th-ranked Badgers prove they've matured enough to play more consistently on defense, from following scheme rules to quickly fixing their own mistakes.

Wednesday's opener at the Battle 4 Atlantis offered a glimpse of that, a welcome early sign after last year's uncharacteristic struggles.

''It's something that we've been stressing since way back in the summer,'' preseason Associated Press All-American Ethan Happ said after the 62-46 win against Stanford Cardinal.

The Badgers' strong defensive performance came in one of four first-round games in the Bahamas, with Oklahoma beating Florida, Dayton beating Butler and fourth-ranked Virginia topping Middle Tennessee to reach Thursday's semifinals.

A year ago, Wisconsin allowed opponents to average 66 points and shoot 45.9 percent. That was the program's worst scoring defense since the 1994-95 season and worst field-goal percentage defense since 1992-93. Not coincidentally, those Badgers won 15 games and missed the NCAA Tournament for the first time since 1998.

On Wednesday, Wisconsin (4-0) held the Cardinal to 27 percent and didn't allow a field goal in the last 6:53 of a game when they didn't shoot well themselves (43 percent, 1 for 8 from 3-point range). That last basket was a 3-pointer by KZ Okpala to pull the Cardinal (2-2) to within 44-42, but the Badgers scored 18 of the final 22 points to pull away.

It was the lowest shooting percentage allowed by Wisconsin against a power-5 or Big East opponent since holding Virginia to 23.4 percent in December 2013.

''They do a nice job of packing it in,'' Stanford coach Jerod Haase said. ''They did a nice job of being physical on our drives. And when we did get to the paint, I would say there were a variety of times where we shot challenged shots where we really didn't have to.''

That's where Wisconsin's 6-foot-10 sophomore Nate Reuvers came in, blocking a tournament-record nine shots - tying a program record - primarily by rotating to help at the rim.

''Before the game, Coach was talking about if a guy has a mistake on defense, we had to cover for each other,'' he said.

He listened. So did the rest of the Badgers, for that matter.

''You talk about these things all the time,'' Gard said, ''but then when they have a game play out that way, it cements the belief in how we're doing things and allows their confidence. Everybody always talks about confidence in an offensive end ... but that can be flipped to the other end of the floor too.''

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