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.

Josh Allen — 2025

Adj EPA / dropback
+0.162
Raw EPA / dropback
+0.148
Dropbacks
584
Turnover EPA
-52.6
WPA
+2.06
WeekOpp DropbacksAdj EPA/dbRaw EPA/dbScheduleTotal adj EPA INT / FLTurnover EPASacksSack EPAWPACPOE
1BAL 49 +0.305 +0.292 +0.013 +14.9 0 / 0 +0.0 1 -1.4 +0.35 +8.6
2NYJ 26 -0.194 -0.086 -0.107 -5.0 0 / 0 +0.0 1 -0.4 -0.13 -9.4
3MIA 30 +0.318 +0.355 -0.037 +9.5 0 / 0 +0.0 2 -1.3 +0.36 +7.7
4NO 25 +0.228 +0.197 +0.032 +5.7 1 / 0 -1.3 3 -3.7 +0.23 +9.3
5NE 32 +0.372 +0.333 +0.039 +11.9 1 / 0 -3.7 1 -1.4 +0.01 +5.9
6ATL 30 -0.243 -0.239 -0.004 -7.3 2 / 0 -5.5 4 -5.0 -0.10 -7.9
8CAR 21 +0.290 +0.366 -0.077 +6.1 0 / 0 +0.0 2 -3.8 -0.01 -7.2
9KC 29 +0.351 +0.331 +0.020 +10.2 0 / 0 +0.0 3 -4.6 +0.37 +18.4
10MIA 44 +0.052 +0.095 -0.044 +2.3 1 / 0 -5.2 3 -1.8 -0.10 +7.7
11TB 31 +0.368 +0.401 -0.034 +11.4 2 / 0 -7.3 0 +0.0 +0.45 -0.8
12HOU 42 -0.065 -0.173 +0.108 -2.7 2 / 0 -7.4 8 -12.5 -0.64 +0.8
13PIT 23 +0.240 +0.235 +0.005 +5.5 1 / 0 -3.6 0 +0.0 +0.10 -8.5
14CIN 32 +0.474 +0.522 -0.048 +15.2 0 / 0 +0.0 3 -3.5 +0.55 +12.5
15NE 30 +0.353 +0.315 +0.038 +10.6 0 / 0 +0.0 2 -3.2 +0.33 +10.4
16CLE 21 -0.349 -0.403 +0.054 -7.3 0 / 0 +0.0 2 -3.3 -0.29 -0.9
17PHI 41 -0.150 -0.230 +0.080 -6.2 0 / 1 -7.5 5 -15.2 -0.49 -0.4
19JAX 36 +0.295 +0.272 +0.023 +10.6 0 / 0 +0.0 1 -2.0 +0.49 +11.3
20DEN 42 +0.221 +0.118 +0.103 +9.3 2 / 1 -11.0 3 -7.5 +0.58 +2.3
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.