Elkin made his collegiate debut in week 2 of the 2021 season versus rival Iowa State.[3] Heading into the 2024 season, he was named to the Mannelly Award watch list, after being named all-academic Big Ten the previous two seasons.[4] For his performance during the 2024 season Elkin was named a AFCA All-American, as well as being named second-team all-Big Ten.[5] He finished his collegiate career with six tackles in 53 games.[6]
After not being selected in the 2025 NFL draft, Elkin signed with the Chicago Bears as an undrafted free agent.[9] He was waived on August 26 as part of final roster cuts and re-signed to the practice squad the next day.[10][11] Elkin was released by the Bears on August 28.[12]
Las Vegas Raiders
On December 24, 2025, Elkin was signed to the Las Vegas Raiders' practice squad.[13]
Chicago Bears (second stint)
On January 20, 2026, Elkin signed a reserve/futures contract with the Chicago Bears.[14]