Blake Mangelson appeared in 41 games, starting 16, for BYU. He recorded 82 tackles, 33 of them solo stops, with 10.5 tackles for a loss, two and a half sacks, five passes defensed and one interception. He had his best season in 2024 when he started 12 of 13 games played, recording 37 tackles, 15 of them solo stops, five and a half tackles for a loss and two sacks.
