He played college football at Sam Houston State, where he was a two-time winner of the Walter Payton Award.
Considered a three-star recruit by 247sports, Briscoe chose a full-ride scholarship to the University of Alabama at Birmingham over offers from Baylor, Boise State, Lamar, Sam Houston State, Stephen F Austin, Wyoming, and preferred walk-on's from Texas A&M and Ole Miss.
Briscoe transferred to Sam Houston State University after UAB's football program was cut following his freshman year.
[2] Despite being a sophomore backup at Sam Houston State behind Jared Johnson, Briscoe passed for 1,883 yards and 14 touchdowns in the 2015 season.
As a junior in the 2016 season, Briscoe was a full-time starter and won the Walter Payton Award after passing for 4,602 yards and 57 touchdowns, an FCS single-season record[3][4] until 2022, when Lindsey Scott Jr. threw 60 for Incarnate Word.