luckadjusted
CFB Week 4 · 2026

Week 3 2025 · September 13, 2025

Oregon at Northwestern, Week 3 2025: who deserved to win?

Oregon beat Northwestern 34–14, and the replays back it up: with the way both teams actually played, Oregon wins 10 of 10.

Before kickoff Oregon was a 95% favorite.

Final

Oregon Ducks 34
Northwestern Wildcats 14

September 13, 2025 · Lanny and Sharon Martin Stadium · Closing line: Oregon −25.5

Luck index +2 Oregon about even · −2 Northwestern

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. Oregon wins 10, Northwestern wins 0.

  1. 1 ORE 49 NU 0
  2. 2 ORE 56 NU 17
  3. 3 ORE 42 NU 7
  4. 4 ORE 31 NU 0
  5. 5 ORE 35 NU 7
  6. 6 ORE 24 NU 0
  7. 7 ORE 31 NU 10
  8. 8 ORE 24 NU 7
  9. 9 ORE 20 NU 7
  10. 10 ORE 26 NU 21

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.

How 4,000 replays ended

Oregon wins 98% of them, Northwestern 2%, counting the 1% still level after regulation as half each. The line is what actually happened: Oregon by 20.

Show as a table
Final margin in the replaysShare of replays
Oregon by 17+82.1%
Oregon by 9–1610.7%
Oregon by 1–85.2%
Level after regulation0.5%
Northwestern by 1–81.3%
Northwestern by 9–160.1%
Northwestern by 17+0.0%

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 +8.0 points to Oregon: the final margin was Oregon by 20, without the luck Oregon by 12. 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.

  • A. Sappington, 42 yds made · 69% expected
  • A. Sappington, 25 yds made · 92% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Oregon 0 for 0 yards, Northwestern 4 for 27 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 5:11 Illegal Formation on Northwestern, 5 yards · pre-snap +1% ORE +1.1 pts
Q2 8:50 False Start on Northwestern, 5 yards · pre-snap 0% ORE +1.0 pts
Q3 3:01 Pass Interference on Northwestern, 2 yards 0% ORE +0.4 pts
Q4 1:41 Face Mask on Northwestern, 15 yards 0% ORE +1.6 pts

When it happened

Northwestern’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 Northwestern was ahead in it, below while Oregon was.
#WhenWhat happenedWin probability forNext drive
1 Q1 12:01 Oregon was stopped on 3rd & 93rd & 4th downs · 33% expected +1% NU ORE: Punt
2 Q1 8:45 Northwestern converted 3rd & 23rd & 4th downs · 63% expected +1% NU NU: Turnover
3 Q1 6:36 Northwestern converted 4th & 13rd & 4th downs · 76% expected +1% NU NU: Turnover
4 Q1 5:11 Illegal Formation on Northwestern, 5 yardsPre-snap flags +1% ORE ORE: Touchdown
5 Q2 9:28 A. Sappington made a 42-yard field goalKicks · 69% expected for him +0% ORE ORE: Touchdown
6 Q2 6:50 Northwestern fumbled and recovered itFumble bounces · loose balls are close to 50/50 +1% NU NU: Punt
7 Q2 3:24 Oregon converted 3rd & 103rd & 4th downs · 31% expected +1% ORE ORE: Touchdown
8 Q3 8:38 Northwestern was stopped on 3rd & 13rd & 4th downs · 77% expected +0% ORE NU: Turnover on downs

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

Oregon 98% · Northwestern 2%

Final margin
Oregon by 20
Luck in points
8.0 for Oregon
Luck-adjusted margin
Oregon by 12.0
Replay with same day's form
Oregon 98% · Northwestern 2% 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 2025 games · Oregon · Northwestern

More from Week 3 2025

Every week 3 game, 2025