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.

Bryce Young — 2025

Adj EPA / dropback
-0.074
Raw EPA / dropback
-0.054
Dropbacks
548
Turnover EPA
-70.6
WPA
-0.13
WeekOpp DropbacksAdj EPA/dbRaw EPA/dbScheduleTotal adj EPA INT / FLTurnover EPASacksSack EPAWPACPOE
1JAX 36 -0.419 -0.428 +0.009 -15.1 2 / 0 -7.2 1 -3.3 -0.28 -12.4
2ARI 58 -0.017 +0.056 -0.073 -1.0 1 / 1 -10.9 3 -8.9 -0.59 -2.3
3ATL 25 -0.100 -0.099 -0.001 -2.5 0 / 0 +0.0 1 -2.2 +0.03 -1.3
4NE 31 -0.256 -0.288 +0.033 -7.9 0 / 0 +0.0 1 -2.4 -0.00 -0.4
5MIA 32 -0.080 -0.033 -0.047 -2.6 1 / 1 -9.5 3 -9.4 +0.06 +8.7
6DAL 26 -0.029 +0.085 -0.113 -0.7 1 / 0 -7.4 1 -1.3 +0.06 +13.7
7NYJ 26 -0.110 +0.004 -0.114 -2.9 0 / 0 +0.0 1 -1.8 +0.02 -3.2
9GB 21 -0.152 -0.157 +0.006 -3.2 1 / 0 -4.6 1 +0.2 -0.03 -11.5
10NO 27 -0.412 -0.426 +0.014 -11.1 1 / 0 -5.0 2 -3.4 -0.31 +2.8
11ATL 52 +0.281 +0.274 +0.007 +14.6 0 / 0 +0.0 5 -13.8 +0.86 +2.2
12SF 31 -0.369 -0.322 -0.047 -11.4 2 / 0 -11.5 1 -1.5 -0.33 -2.6
13LA 22 +0.670 +0.648 +0.022 +14.7 0 / 0 +0.0 2 -2.2 +0.70 +8.8
15NO 25 +0.341 +0.308 +0.033 +8.5 0 / 0 +0.0 1 -1.2 +0.16 +7.1
16TB 34 +0.074 +0.114 -0.040 +2.5 0 / 0 +0.0 2 -2.7 +0.19 +6.7
17SEA 26 -0.752 -0.811 +0.059 -19.5 1 / 0 -5.4 2 -2.7 -0.48 -7.1
18TB 34 +0.151 +0.189 -0.038 +5.1 1 / 0 -3.2 0 +0.0 +0.02 +11.3
19LA 42 -0.186 -0.192 +0.006 -7.8 1 / 0 -5.9 2 -3.0 -0.22 -5.9
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.