Mumpfield attended Dacula High School in Dacula, Georgia, where, as a senior, he totaled 43 catches for 820 yards and 13 touchdowns, as well as three punt return touchdowns.[2] Coming out of high school, he was rated as a two-star recruit and committed to play college football for the Akron Zips.[3][4]
College career
Akron
In week 4 of the 2021 season, Mumpfield notched seven receptions for 67 yards and a touchdown versus Ohio State.[5] In week 11, he totaled 122 receiving yards and two touchdowns versus Western Michigan.[6] Mumpfield finished his freshman season with 63 receptions for 751 yards and eight touchdowns, earning freshman all-American and second-team all-MAC honors.[7] After the season, Mumpfield entered his name into the NCAA transfer portal.[7]
Pittsburgh
Mumpfield transferred to play for the Pittsburgh Panthers.[8] In week 3 of the 2022 season, he notched his first touchdown with the Panthers in a win over Western Michigan.[9] Mumpfield finished the season with 58 receptions for 551 yards and a touchdown.[10] In the 2023 season, he totaled 44 catches for 576 yards and five touchdowns.[10] Mumpfield finished the 2024 season with 52 receptions for 813 yards and five touchdowns for the Panthers.[10]