MASON, Ohio -- Top-seeded Ohio Northern won its third OAC championship in the last four years and 10th overall, topping No. 3-seed Otterbein by a 5-0 score on Saturday at the Lindner Family Tennis Center.

The Polar Bears improved to 18-4 on the season, while the Cardinals fell to 16-7. The win also gives Northern an automatic bid to the NCAA Division III tournament. The field will be announced on Monday.

"Our guys were excited to get on the courts [on Saturday]," head coach Bob Rohan said. "We were looking forward to playing. We played great all across the board."

Northern opened up play by taking all three doubles courts. The tandem of sophomore Sam Prewitt and junior Blake Troller started things off with a 8-1 win at No. 3 doubles. Freshman John Mostowy and junior Josh Saunders expanded ONU's lead to 2-0 with a 8-1 win at No. 2 doubles.

Senior Joey Frank and junior Do Thai finished off the doubles sweep at No. 1 doubles with a 8-4 victory.

In singles play, Saunders won 6-1, 6-1 at No. 3 singles.

Troller clinched the match at No. 5 singles, winning 6-2, 6-0.

"It was great to win," Rohan said. "I am very proud of the way these guys and how they conducted themselves both on and off the court all weekend. I can't think of a better group of people to represent Ohio Northern."