Umanmielen was born on April 18, 2002, in Manor, Texas. He attended Manor High School, playing for their football team recording 93 tackles with 13 going for a loss, six sacks, two fumble recoveries, and a forced fumble.[1] Umanmielen committed to play college football at the University of Florida over offers from Auburn, Baylor, and Texas.[2][3]
College career
Florida
In Umanmielen's first season in 2020, he notched three tackles with two being for a loss, and two sacks.[4] In the 2021 season, he tallied 17 tackles with 1..5 going for a loss, a sack, and a forced fumble.[5] In week 10 of the 2022 season, Umanmielen had a strong performance having a strip sack on quarterback Haynes King as he helped the Gators beat Texas A&M.[6][7] Umanmielen finished his breakout 2022 season with 39 tackles with 9.5 being for a loss, 4.5 sacks, and two forced fumbles.[8] Umanmielen was named preseason third team all SEC, for the 2023 season.[9] Umanmielen was a projected prospect for the 2024 NFL draft, being projected as a late second round pick.[10] On December 6, 2023, instead of declaring for the draft, he entered the transfer portal.[11]
Ole Miss
On December 15, 2023, Umanmielen announced that he would be transferring to Ole Miss.[12]