Net EPA per play = offensive EPA/play minus defensive EPA/play on scrimmage downs (pass + run only). Offensive EPA measures how many expected points a team adds per play when on offense; defensive EPA measures the same from the opposing offense. A negative defensive EPA means the defense suppresses scoring. Data sourced from nfl_data_py play-by-play; includes regular season and postseason games.
San Francisco 49ers lead NoPunt's 2026 NFL power rankings with a net EPA of +0.266 per play, the best play-by-play efficiency margin in the league.
Purely from play-by-play Expected Points Added (EPA), offensive EPA per play, defensive EPA per play, and the net margin, across every snap of the season. No polls, no opinions: it's a measure of how efficiently each team actually plays.
Standings count wins and losses; power rankings measure how well a team plays regardless of record. An 8-3 team on a soft schedule can rank below a 6-5 team that's dominated tougher opponents by EPA, the rankings reward performance, not just results.
Every week during the NFL season, as each game's play-by-play data is processed. In the offseason they hold at the final rankings from the last completed season.