Game quality

What each result was worth beyond the score. Every play is graded by EPA (expected points added), then adjusted for who it came against: a defence's rating is what it allowed to everyone else that season, so a big day against a bad defence counts for less. Season views include playoff games.

Cam Ward — 2026 Every split →

Adj EPA / dropback
-0.130
Raw EPA / dropback
-0.128
Dropbacks
220
Turnover EPA
-24.6
WPA
-1.05
WeekOpp DropbacksAdj EPA/dbRaw EPA/dbScheduleTotal adj EPA INT / FLTurnover EPASacksSack EPAWPACPOE
1NYJ 35 -0.333 -0.210 -0.123 -11.6 0 / 0 +0.0 3 -4.2 -0.24 +0.4
2PHI 22 +0.020 -0.004 +0.025 +0.4 0 / 0 +0.0 2 -2.4 -0.07 +6.5
3NYG 36 -0.194 -0.180 -0.014 -7.0 1 / 0 -4.5 0 +0.0 -0.36 -0.1
4BAL 33 -0.014 +0.013 -0.027 -0.5 1 / 0 -6.7 1 -1.5 -0.21 +6.8
5HOU 40 -0.358 -0.423 +0.065 -14.3 1 / 0 -5.8 4 -7.7 -0.35 -2.4
6IND 22 -0.170 -0.161 -0.009 -3.7 1 / 0 -4.0 0 +0.0 +0.07 -20.1
7CLE 32 +0.255 +0.183 +0.072 +8.2 1 / 0 -3.6 1 -1.1 +0.10 +1.6
Opponent adjustment. A unit's rating for a game is its average over its other games that season, blended with 16 games' worth of prior (league average plus half of last season's gap from it; 24 games for pass defence, which is noisier). Early in a season that leans on last year; by midseason it is mostly this year. Chosen by how well it predicts a held-out game: it cut that error by about a quarter against no shrinkage, and adjusted numbers agree between odd and even weeks more than raw ones do (team EPA margin r 0.52 → 0.55, defence 0.32 → 0.36, QB EPA/dropback 0.47 → 0.49, 2016–2025).
Win expectancy is a logistic fit of wins on EPA margin over 6,036 completed games (it names the winner 86.5% of the time). These describe what happened; one game is not a forecast. Play-by-play credits the quarterback with every sack and dropback, so a bad line shows up in his numbers. Seasons 2016–2026, built 2026-10-28 11:05 UTC, from nflverse. Write-up: backtests/nfl_game_quality/FINDINGS.md.