All that was left were the heavyweights, where unranked Jon Gingrich also won by major decision, 14-5.
Brown, ranked fourth by InterMat, and the second-ranked Perry made for arguably the most dramatic bout of the meet. Brown went for an early takedown but was caught and lost two points. The pair battled to a 2-2 deadlock in the second period before Brown was awarded a stalling point. Perry escaped in the third, and the bout went to two tiebreakers.
There were several opportunities for points in the extra time, and Perry ultimately took advantage with an escape. He fended off a late attempt to win 4-3. Brown lost to Perry in last season's championship bout.
"Those are two of the best in the country and made for a great match," Sanderson said.
"You don't usually beat a national champion with one takedown," he added. "You got to get more than one takedown, and that's what he was trying to do early."
No. 2 Nico Megaludis started things off with a comeback at 125 pounds, turning a 5-1 second-period deficit to No. 13 Eddie Klimara into an 11-7 victory.
Benton High graduate and former Line Mountain state champion Zain Retherford also won at 141 pounds. The freshman used a third-period escape and riding time to take a 2-0 decision against No. 19 Anthony Collica.