Rudy Stofer was one of the elite linemen in the state of Nebraska his senior season, earning First Team Super State honors for all classifications from the Lincoln Journal Star as a defensive lineman. He was also named to the Journal Star's First Team All-State Team for Class A. The Omaha World-Herald selected him First Team All-State, as well. 247 Sports ranked him as the No. 10 overall recruit in the state of Nebraska for the 2017 recruiting class. Stofer is projected as an offensive tackle for the Cowboys. He helped lead his Kearney High team to the quarterfinals of the Nebraska Class A Playoffs, the largest classification in the state. Kearney ended the season with an 8-3 record. He made 106 total tackles his senior season, including 48 solo tackles, 7.0 sacks and force three fumbles. He played for head coach Brandon Cool.
Stofer was recruited by Iowa State and Nebraska among other schools.