Georgia

During Mathis's freshman year he underwent emergency surgery due to a brain cyst.^[4] He subsequently received a medical redshirt.

After Jake Fromm decided to forgo his senior season to prepare for the NFL Draft and Jamie Newman opted out of the season due to concerns surrounding the COVID-19 pandemic, Mathis was expected to compete for the starting job.^[5] He got the start in their opening game at Arkansas.^[6] After a disappointing first half, Stetson Bennett came in and took his spot. The next time Mathis got meaningful playing time was against rival Florida.^[7] On November 28, 2020, Mathis left the team and entered the transfer portal.^[8][9] On December 14, 2020, he announced he would be transferring to Temple.^[10][11]

Temple

In his first season with Temple, Mathis was named the day one starter against Rutgers. In the season opener, Mathis went 8 for 24 for 148 yards and one interception in a 61–14 loss.^[12] Throughout the season, Mathis would share time with fellow Temple quarterback Justin Lynch.^[13] In a game against Memphis, Mathis had a record setting day completing 35 passes for 322 yards and three touchdowns.^[14] Mathis finished the season with six touchdowns, 1,223 yards, and 116 completions.^[15] During the season it was rumored that Mathis had left the Owl's program, but he later publicly announced he would be staying with the team.^[16][17]

The following season, Mathis was once again named the starting quarterback.^[18][19][20] With Mathis at the helm, Temple was shutout in a 30–0 loss to Duke, in which he contributed 83 yards on 11 completions.^[21] The following week, Mathis was benched in favor of true freshman E.J. Warner.^[22] Subsequently, Mathis began taking practice reps at wide receiver, before switching positions.^[23]

On October 15, 2023, Mathis announced that he would enter the transfer portal for the second time.^[24]

Davenport

In 2024, Mathis transferred to Davenport University to play for the Davenport Panthers.

College statistics