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.

Trevor Lawrence — 2024

Adj EPA / dropback
+0.032
Raw EPA / dropback
+0.020
Dropbacks
305
Turnover EPA
-29.5
WPA
-0.49
WeekOpp DropbacksAdj EPA/dbRaw EPA/dbScheduleTotal adj EPA INT / FLTurnover EPASacksSack EPAWPACPOE
1MIA 24 +0.080 +0.071 +0.009 +1.9 0 / 0 +0.0 3 -3.8 -0.07 -0.2
2CLE 33 -0.133 -0.182 +0.049 -4.4 0 / 0 +0.0 4 -6.3 -0.40 -9.2
3BUF 42 -0.410 -0.383 -0.027 -17.2 1 / 0 -4.9 4 -8.0 -0.14 -5.6
4HOU 34 -0.005 -0.041 +0.036 -0.2 0 / 0 +0.0 1 -2.2 -0.19 -7.8
5IND 34 +0.469 +0.493 -0.024 +15.9 1 / 0 -2.4 0 +0.0 +0.47 +11.4
6CHI 39 +0.221 +0.218 +0.004 +8.6 1 / 0 -3.2 3 -4.7 +0.04 +6.4
7NE 21 +0.514 +0.533 -0.019 +10.8 0 / 0 +0.0 0 +0.0 +0.33 +4.6
8GB 33 +0.195 +0.163 +0.033 +6.4 1 / 1 -8.2 1 -5.1 +0.20 +6.6
9PHI 35 -0.217 -0.251 +0.035 -7.6 2 / 0 -8.7 2 -4.7 -0.54 -9.4
13HOU 10 -0.463 -0.504 +0.041 -4.6 1 / 0 -2.2 0 +0.0 -0.18 -17.2
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 2026-09-14 01:25 UTC, from nflverse. Write-up: backtests/nfl_game_quality/FINDINGS.md.