FARGO, N.D. -- NDSU senior Michael Tveidt scored 15 of his game-high 23 points after halftime as the Bison blitzed by the Fighting Sioux with a strong second half, posting an 81-55 victory at the Fargodome on Saturday night in the first meeting between the two clubs as Division I foes.

UND junior Patrick Mitchell (Des Moines, Iowa) and true freshman Jamal Webb (Buffalo, N.Y.) each had 12 points to lead the Sioux in scoring, while sophomore Mitch Wilmer (Warroad, Minn.) added a career-high 10 points off the bench.

The trio's scoring output was not enough though as Tveidt and classmate Freddy Coleman took over the contest after the teams went into the break tied at 33-33 as the rivalry resumed for the first time since 2004.

Coleman scored the opening four points of the half and the Bison (6-3) never looked back, racing out to a 14-0 run that put the game out of reach for the Sioux (3-6). The fifth-year senior finished with 17 points and a game-high 14 rebounds.

NDSU would go on to outscore UND, 48-22, in the second 20 minutes, while shooting a blistering 70.4 percent from the field (19-for-27). The Bison defense limited the Sioux to just six second-half field goals and a 30.6 percent shooting clip for the game.

"I thought it was a tale of two halves," UND head coach Brian Jones said. "I thought we were extremely focused and tough in the first half. But, at the start of the second half we showed some inexperience and youth ... and that was how NDSU was able to spread that game open.

"In the first 20 minutes, we made them work for everything thing they got. I think that opening four minutes of the second half, they were able to get any look they wanted."

The teams played in front of a Fargodome crowd of 10,709 - a new home attendance record for NDSU - and both squads gave an intense showing in the first 20 minutes as Webb tied things up at 33-33 with a put back just before the buzzer.

Each squad held at least a five-point advantage during the opening 20 minutes.

NDSU built its largest lead early on holding a 13-8 advantage, but the Sioux charged back and would take a 20-19 lead on a driving layup by freshman Aaron Anderson (Brooklyn Park, Minn.).

Mitchell would extend UND's lead to its peak at 26-21 on a 3-pointer with just over four minutes to play, but that long-distance connection would be the only one of the game though for the Sioux, who missed their other 12 attempts from beyond the arc.

The Bison struggled from distance as well in the opening 20 minutes, making just one of seven attempts, but Tveidt and company improved that to a 3-for-6 clip in the second half.

Eric Carlson added 12 points and Drew Lundberg scored 10 points to give the Bison four double-digit scorers. Coleman helped NDSU hold a 43-37 advantage on the glass. Freshman Troy Huff (Milwaukee, Wis.) was the top rebounder for the Sioux with seven, while Mitchell and Webb both had six.

The Sioux return to action at the Betty Engelstad Sioux Center on Tuesday against Mayville State. Tip-off with the Comets is set for 7 p.m.