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 — 2023

Adj EPA / dropback
+0.019
Raw EPA / dropback
-0.000
Dropbacks
602
Turnover EPA
-89.7
WPA
+0.53
WeekOpp DropbacksAdj EPA/dbRaw EPA/dbScheduleTotal adj EPA INT / FLTurnover EPASacksSack EPAWPACPOE
1IND 34 -0.282 -0.265 -0.018 -9.6 1 / 1 -16.2 2 -10.3 -0.12 +5.2
2KC 45 -0.228 -0.281 +0.053 -10.2 0 / 0 +0.0 4 -7.2 -0.40 -12.7
3HOU 40 +0.070 +0.055 +0.015 +2.8 1 / 0 -3.5 0 +0.0 +0.00 +1.5
4ATL 32 +0.104 +0.138 -0.033 +3.3 0 / 0 +0.0 2 -4.5 +0.12 +6.1
5BUF 42 +0.238 +0.199 +0.039 +10.0 0 / 2 -7.5 5 -11.6 +0.34 +2.1
6IND 33 -0.125 -0.111 -0.013 -4.1 1 / 0 -3.8 3 -5.6 -0.01 +6.4
7NO 29 +0.221 +0.158 +0.063 +6.4 0 / 0 +0.0 0 +0.0 +0.25 -3.8
8PIT 35 +0.199 +0.204 -0.005 +7.0 1 / 0 -5.4 3 -5.6 +0.05 +6.6
10SF 34 -0.452 -0.510 +0.058 -15.4 2 / 1 -12.6 5 -12.0 -0.25 -6.8
11TEN 33 +0.471 +0.500 -0.029 +15.6 0 / 0 +0.0 1 -0.4 +0.16 +15.6
12HOU 39 +0.342 +0.320 +0.022 +13.3 1 / 0 -6.3 0 +0.0 +0.37 -4.5
13CIN 31 +0.330 +0.338 -0.008 +10.2 0 / 0 +0.0 2 -2.4 +0.30 +14.8
14CLE 55 -0.033 -0.132 +0.099 -1.8 3 / 0 -8.7 4 -6.9 -0.34 -2.8
15BAL 44 -0.206 -0.276 +0.070 -9.0 0 / 1 -4.6 1 -4.6 +0.04 -4.5
16TB 33 -0.206 -0.177 -0.029 -6.8 2 / 1 -12.8 3 -7.9 -0.04 -4.8
18TEN 43 -0.003 +0.038 -0.042 -0.1 2 / 0 -8.3 0 +0.0 +0.07 +3.7
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.