PFSN's Defensive Tackle Impact (DTi) assigns a numerical score and a letter grade to an individual defensive tackle's performance. The grade factors in both pass rushing and run defense, with roughly a 60/40 split in favor of pass rushing metrics. There's also a small bonus for splash plays like sacks, passes defended, forced fumbles, and interceptions.

Defining who qualifies as a defensive tackle isn't as black-and-white as some other positions. To qualify for our leaderboards, a player must play at least 30% of his team's overall defensive snaps for the season or game, with at least 50% of his own snaps coming on the interior of the defensive line. Notable hybrid linemen who qualify as DTs for us include Zach Allen, Calais Campbell, and late-career J.J. Watt.