During Isbell's career at Illinois State, he played in 28 games notching 105 tackles with five and a half being for a loss, six pass deflections, five interceptions, two fumble recoveries, and a forced fumble, en route to being named a FCS All-American twice.[2] After two seasons at Illinois State, Isbell decided to enter the transfer portal.[3]
Utah
Isbell decided to transfer to play for the Utah Utes.[4][5] During Isbell's lone season with Utah in 2022, he played in all fourteen games making one start where he recorded 16 tackles with half a tackle being for a loss.[6] After the conclusion of the 2022 season, Isbell decided to enter his name into the NCAA transfer portal.[7][8]
Coastal Carolina
For the 2023 season, Isbell decided to transfer to play for the Coastal Carolina Chanticleers.[9] In week one of the 2023 season, Isbell made three interceptions in a loss against UCLA.[10] In his senior season in 2023, Isbell tallied 86 tackles with four and a half being for a loss, five pass deflections, and three interceptions.[11] After the conclusion of the 2023 season, Isbell decided to declare for the 2024 NFL draft.[12]