As a junior in 2001, Quinn threw for 2,200 yards and 21 touchdowns to go along with 15 interceptions, posting a 9–4 record and helped lead Coffman to the Division I state semi-finals. As a senior in 2002, he threw for 2,149 yards, threw 25 touchdowns with four interceptions, and completed 143 of 258 pass attempts, and rushed for 108 yards and six touchdowns. Quinn helped his team post an 8–3 record and played in the U.S. Army All-American Bowl in San Antonio, Texas. Quinn was named the Columbus Dispatch and Ohio Capital Conference Offensive Player of the Year and was an All-State choice. Quinn was named an All-Conference player in baseball as a junior and lettered three times and was a part of the 2001 State Championship team. He was a member of Young Life, the Rock Solid Club, and Who's Who Among America High School Students.