He played college football for the Oklahoma Sooners, and was selected by the Dallas Cowboys in the third round of the 2020 NFL draft.
[1] Gallimore opted to transfer to the Canada Prep Academy in Welland, Ontario, which allowed him to travel through the United States and compete against some of the top high school football programs.
[2] In 2015, he was the first Canadian-born player to be invited to participate in the U.S. Army All-American Bowl, but couldn’t suit up because of a knee injury.
[3] After receiving 30 scholarship offers from U.S. schools, Gallimore committed to the University of Oklahoma to play college football.
Even though he played just 20 snaps in the first four contests, he was named the starter at the three-technique defensive tackle position after Gerald McCoy and Trysten Hill were lost for the season with injuries.
His best game came in Week 9 against the then-undefeated Pittsburgh Steelers, when he contributed to limit their offense to 46 rushing yards, while making 3 tackles (one for loss) and one quarterback hit.
[19] In 2023, he lost additional playing time after the Cowboys drafted defensive tackle Mazi Smith in the first round.
He appeared in all 17 games as a backup, tallying 15 tackles (one for loss), one sack, 7 quarterback pressures and one pass defensed.