Wallace was born in Bowie, Maryland and attended DeMatha Catholic High School.

[8] During his tenure with the Minuteman, Wallace was a four-year starter and a team captain.

[9][10] He finished his career at UMass with 140 tackles, 28 pass deflections and three interceptions, playing over 2,000 snaps.

[12][13] During the Rose Bowl, played on January 1, 2024, against Alabama, Wallace recorded two solo tackles and a 4th quarter fumble recovery to help seal the Wolverines' first College Football Playoff victory, en route to their national championship.

Wallace signed with the Los Angeles Rams as an undrafted free agent on May 2, 2024.