As a junior, he rushed for over 800 yards, notched 75 tackles, two sacks, three interceptions, four forced fumbles, and 25 touchdowns.
[3][4] Perich also notched 76 tackles, three interceptions, and four fumble recoveries on defense,[5] earning all-state recognition.
[6] He accepted an invite to play in the All-American Bowl, where he intercepted a pass on the goal line and blocked a punt en route to earning game MVP honors.
[10] As a freshman, Perich recorded 24 solo tackles, one pass defended, one forced fumble, and five interceptions.
[11] He was named first-team All-Big Ten Conference and second-team All-American following the conclusion of the regular season.