luckadjusted
CFB Week 4 · 2026

Week 3 2026 · September 19, 2026

USC at Rutgers, Week 3 2026: who deserved to win?

USC beat Rutgers 42–35, but the replays lean toward Rutgers: it takes 8 of 10 with the same day's form.

USC won on an off day: its defense played far below its usual level. In a fresh game against Rutgers it would win 93% of the time; with this day’s form, 25%. The numbers

Before kickoff USC was a 91% favorite. The biggest swing (Q3, 10:32 left): Return touchdown by USC, worth 13 points of win probability to USC.

Final

USC Trojans 42
Rutgers Scarlet Knights 35

September 19, 2026 · SHI Stadium · Closing line: USC −21

Luck index +75 USC very lucky · −75 Rutgers

Each team’s own plays from this game, resampled into new drives 4,000 times: with the way both teams actually played, how often does this performance win? How the replay works

Ten replays. USC wins 2, Rutgers wins 8.

  1. 1 USC 28 RUTG 14
  2. 2 USC 24 RUTG 21
  3. 3 USC 33 RUTG 35
  4. 4 USC 33 RUTG 37
  5. 5 USC 28 RUTG 35
  6. 6 USC 21 RUTG 31
  7. 7 USC 7 RUTG 21
  8. 8 USC 13 RUTG 31
  9. 9 USC 7 RUTG 28
  10. 10 USC 24 RUTG 52

Three other ways to ask

Each answers a different question, so none of them replaces the replay above.

The closing betting line, turned into a probability. What everyone knew before the game.

The line plus what this game showed, weighted by how much one game can tell. It stays close to the line because one game says little.

Every kick, fumble bounce, conversion and judgment call redrawn; everything else fixed. The narrowest view of luck.

USC won on an off day

Its defense played far below its usual level. In a fresh game against Rutgers it would win 93% of the time; with this day’s form, 25%.

69 points apart for USC: the gap is how differently this game went from what the two teams usually are.

UnitThis gameUsual levelBetter or worse than usual
USC offenseEPA per play gained +0.48 +0.17 better by 0.31
USC defenseEPA per play allowed +0.56 +0.10 worse by 0.46
Rutgers offenseEPA per play gained +0.56 +0.11 better by 0.45
Rutgers defenseEPA per play allowed +0.48 +0.15 worse by 0.33

EPA (expected points added) per play on competitive snaps, turnovers left out because they are valued as luck. Usual level: the team’s earlier games this season plus half of last season, pulled toward the league average. One team’s defense and the other team’s offense are the same snaps, so one game can’t fully say whose day it was; it shows how far this one was from both teams’ norms.

How 4,000 replays ended

USC wins 25% of them, Rutgers 75%, counting the 4% still level after regulation as half each. The line is what actually happened: USC by 7.

Show as a table
Final margin in the replaysShare of replays
USC by 17+3.7%
USC by 9–166.3%
USC by 1–813.7%
Level after regulation4.4%
Rutgers by 1–821.3%
Rutgers by 9–1620.3%
Rutgers by 17+30.4%

Where the luck was

What the luck was worth

Every lucky and unlucky play, weighted by the moment it happened: its swing in win probability, added up by kind. A missed kick in a decided game counts for nothing; the same kick at the end of a tie game can be most of a win.

Swings add up across a game, so in one that went back and forth they can pass 100%. On the scoreboard the same luck was worth +0.7 points to USC: the final margin was USC by 7, without the luck USC by 6.3. Luck shares are the fitted ones (how much of each kind is luck).

The kicks

How likely each kicker was to make that kick (his own record, the distance), and what happened.

  • C. Chittenden, 35 yds made · 80% expected
  • C. Chittenden, 32 yds made · 84% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: USC 8 for 71 yards, Rutgers 5 for 39 yards

Every accepted flag, in order, and what it did to the helped team’s chance of winning at that moment, including any play it wiped out (points on the scoreboard in grey). A flag in a decided game is worth nothing; one at the turn of a close game can be worth most of a win. Judgment calls count toward luck, pre-snap fouls mostly don’t. How calls are valued

WhenFlagWin probability for
Q1 11:50 Holding on USC, 10 yards +1% RUTG +1.1 pts
Q1 11:42 False Start on USC, 5 yards · pre-snap 0% RUTG +0.2 pts
Q1 10:39 Pass Interference on Rutgers, 15 yards +2% USC +2.8 pts
Q1 8:00 Face Mask on USC, 15 yards +1% RUTG +2.2 pts
Q1 5:21 Delay of Game on Rutgers, 5 yards · pre-snap +1% USC +1.7 pts
Q2 13:10 Delay of Game on USC, 5 yards · pre-snap +1% RUTG +0.8 pts
Q2 9:30 Pass Interference on USC, 10 yards, wiping out the play +1% RUTG +2.3 pts
Q2 4:25 Pass Interference on Rutgers, 10 yards, wiping out the play +1% USC +1.7 pts
Q3 10:27 Offside on USC, 5 yards · pre-snap 0% RUTG +0.6 pts
Q3 1:48 Pass Interference on USC, 6 yards +1% RUTG +0.8 pts
Q3 0:21 Illegal Substitution on Rutgers, 5 yards · pre-snap +1% USC +1.1 pts
Q4 10:23 Illegal Substitution on Rutgers, 4 yards · pre-snap 0% USC +0.2 pts
Q4 0:56 Unsportsmanlike Conduct on USC, 15 yards 0% RUTG +0.9 pts

When it happened

Rutgers’s chance of winning

Numbers mark the biggest luck moments, listed below.

Our in-game win probability: the score, the value of the possession and the time left, starting from the betting line. Overtime has no clock and is drawn at a fixed width. Shaded above the middle while Rutgers was ahead in it, below while USC was.
#WhenWhat happenedWin probability forNext drive
1 Q2 11:59 USC converted 3rd & 143rd & 4th downs · 27% expected +2% USC USC: Punt
2 Q2 2:31 Rutgers converted 4th & 213rd & 4th downs · 16% expected +2% RUTG RUTG: Touchdown
3 Q3 10:32 Return touchdown by USCSpecial teams +13% USC USC: Touchdown
4 Q3 0:15 USC was stopped on 3rd & 23rd & 4th downs · 69% expected +2% RUTG USC: Turnover on downs
5 Q3 0:07 USC converted 4th & 23rd & 4th downs · 68% expected +2% USC USC: Turnover on downs
6 Q4 15:00 USC was stopped on 3rd & 53rd & 4th downs · 48% expectedUSC was stopped on 4th & 43rd & 4th downs · 52% expected +4% RUTG USC: Turnover on downs
7 Q4 11:39 Rutgers was stopped on 4th & 13rd & 4th downs · 77% expected +2% USC RUTG: Touchdown
8 Q4 4:24 Rutgers converted 4th & 103rd & 4th downs · 28% expected +2% RUTG –

Adjust the assumptions

Disagree with how much of a fumble bounce or a pass interference call is luck? Change it and the coin-flip replay reruns in your browser.

Only coin-flips re-rolled

USC 85% · Rutgers 15%

Final margin
USC by 7
Luck in points
0.7 for USC
Luck-adjusted margin
USC by 6.3
Replay with same day's form
USC 25% · Rutgers 75% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts

None by default: our tests measured no carryover after a lucky break. Slide it up to count a break for more than its own swing. Why

Flip a play

Force the other outcome, in this game and in every replay: a made kick becomes a miss, a stop becomes a conversion, a flag goes the other way.

About these numbers

Play-by-play and expected points from CollegeFootballData.com via cfbfastR; win probability from our own model of the score, the possession and the betting line; kicks valued against each kicker’s own record. College play-by-play has no charting of drops or interception-worthy throws and no injury reports, so those kinds of luck aren’t counted here.

Methodology and validation · All Week 3 2026 games · USC · Rutgers

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