Shelvin Mack scored all 14 of his points in the first half, and Matt Howard had 14 points and nine rebounds to help No. 12 Butler rout second-seeded Wright State 70-45 in the Horizon League title game Tuesday night.
Butler (28-4) extended the nation's longest winning streak to 20 and heads into NCAA play as the only Division I team to complete a perfect conference season.
The Raiders (20-12) were led by N'Gai Evans with 13 points. They lost for the third time this season to Butler and barely avoided setting a record for worst loss in a Horizon championship game with two free throws with 3.8 seconds to go. The record margin is 26 points, set in 1988.
Butler took control quickly in the first half, hitting eight three-pointers, four of them from Mack, a Bryan Station High graduate.
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Summit League: Derick Nelson scored a career-high 36 points and slow-starting Oakland, Mich., defeated IUPUI 76-64 in the Summit League championship game in Sioux Falls, S.D., to advance to the NCAA Tournament.
The Grizzlies earned their second NCAA berth with their school-record 11th consecutive win. Their only other NCAA appearance was in 2005.
Playing with a broken nose he suffered in Oakland's first-round win over UMKC, Nelson provided a spark after top-seeded Oakland missed its first eight shots against the No. 2 Jaguars.
Sun Belt: Josh White's shot from near the free-throw line with 22 seconds remaining gave North Texas a 66-63 win over Troy in the Sun Belt Tournament championship game in Hot Springs, Ark.
Troy (20-12) rallied from an eight-point deficit in the second half, but the 5-foot-10 White's shot broke a 63-63 tie and sent the Mean Green (24-8) to the NCAA Tournament.
Second-seeded North Texas has won 11 straight and snapped a seven-game winning streak for top-seeded Troy.
Big East: For the fifth straight year, Connecticut left the Big East Tournament without winning a game, losing 73-51 to St. John's in New York. There will be no NCAA Tournament for Connecticut (17-15), and Coach Jim Calhoun hinted afterward that there might not be an NIT, either.
■ Herb Pope had 27 points and 11 rebounds, and Seton Hall built a huge second-half lead before barely holding off a furious Providence rally for a 109-106 victory.
■ Dominique Jones scored seven of his game-high 20 points in the first 8½ minutes as ninth-seeded South Florida quickly disposed of 16th-seeded DePaul, 58-49.
Atlantic 10: Ricky Harris scored 24 points, and Massachusetts pulled ahead of Charlotte late to win 59-56 in Charlotte, N.C.
■ Chris Matthews tied his career high with 28 points, and Andrew Nicholson scored 25 as host St. Bonaventure rolled over Duquesne 83-71.
■ Keith Cothran and Lamonte Ulmer scored 15 points each to help host Rhode Island beat Saint Joseph's 87-76.
Around the nation
Final Four going 3-D: If John Wall and Co. make it to the Final Four, Cats fans will want to get out their Big Blue 3-D glasses. That's because CBS will have 3-D coverage, in theaters, of Final Four games.
Sean McManus, who oversees CBS's sports and news divisions, said coverage will be separate from the normal TV coverage — using announcers Dave Ryan and Steve Lappas.
CBS also announced that singer Jennifer Hudson — following Luther Vandross and Teddy Pendergrass — will become the first woman to perform the closing One Shining Moment song.
Izzo suspends Allen: Michigan's State Chris Allen has been indefinitely suspended and will miss at least the team's Big Ten Tournament opener.
Coach Tom Izzo told reporters Tuesday the guard was suspended for not meeting responsibilities to his teammates. Allen usually starts and is the fifth-leading scorer for the Spartans (24-7), averaging 9.1 points.
Cajuns fire Lee: Louisiana-Lafayette will not renew the contract of Coach Robert Lee. The Cajuns were 13-16 this season, losing to Louisiana-Monroe in the first round of the Sun Belt Conference Tournament.
Middle Tennessee 70, Arkansas-Little Rock 68 (OT): Alysha Clark scored 48 points, including the winning layup with 1.8 seconds left in overtime, to lead Middle Tennessee past Arkansas-Little Rock in the Sun Belt Tournament title game Tuesday at Hot Springs, Ark.
Clark set the tournament's single-game scoring record for a third straight game and finished with a three-game total of 132 points. The Blue Raiders (25-5) needed every basket to hold off top-seeded Little Rock (26-6) and earn their 13th NCAA Tournament bid.
Clark easily broke her tournament record of 92 total points from last year.
Scott County graduate Chelsia Lymon added four points and five rebounds.
No. 1 Connecticut 60, No. 9 West Virginia 32: Kalana Greene scored 15 points to help Connecticut to its 72nd straight win and 16th Big East Tournament title. Greene made her first seven shots and grabbed 12 rebounds.
South Dakota State 79, Oral Roberts 75 (OT): Kristin Rotert scored 21 points and made the game-clinching free throw with four seconds left in overtime to give defending champion South Dakota State a second straight Summit League tournament crown.