After MSU's Zach Lehrke took an unsportsmanlike conduct penalty 40 seconds into the game, freshman winger Seth Ambroz broke through with three seconds to go on the man advantage. After Zach Budish threw the puck in front, Ambroz chipped a rebound over the head of Maverick goaltender Austin Lee.
The Gophers, who allowed Minnesota State to erase two leads in a 4-2 win on Friday, would not allow MSU to tie the score on Saturday.
Captain Taylor Matson extended the Minnesota lead 8:24 into regulation by beating Lee through a screen on a quick turnaround shot from the left circle.
Freshman Kyle Rau buried his 11th goal of the season shortly before intermission to make it a 3-0 game. Defenseman Mark Alt found the converted left winger all alone in front and set up an easy tap-in goal with a cross-ice pass.
Minnesota State made the game more interesting in the second period when Lehrke broke through Gopher netminder Kent Patterson after the senior goalie had stopped all 14 of the Mavericks' first-period shots.
Lehrke recorded the first of his two power-play markers on the night by sliding a shot through numerous bodies and under Patterson two and a half minutes into the middle stanza.
The Park Rapids, Minn.-native struck again at the four-minute mark of the third period by converting on a one-time feed from Jean-Paul Lafontaine with Gopher defenseman Justin Holl in the penalty box.
The shot that resulted in the Mavericks' second goal was only one of four shots Minnesota allowed in the final 20 minutes of regulation and UM held on to its 13th victory of the season.
Minnesota State had nine power plays—three in each period—on the night. Minnesota had five man advantage opportunities, all of which were under two minutes in length.
The sweep helped the Gophers avenge two losses handed to them by the Mavericks on the road almost a year ago to the day. In eight regular-season home series against MSU all-time, the Gophers are now 11-1-4.
UM will look to keep up its winning ways when its seven-game homestand continues next weekend against Michigan Tech at Mariucci Arena. Minnesota will face the Huskies at 7 p.m. on Friday and at 8 p.m. on Saturday.