luckadjusted
CFB Week 4 · 2026

Week 9 2025 · October 25, 2025

Northwestern at Nebraska, Week 9 2025: who deserved to win?

Nebraska beat Northwestern 28–21, and the replays lean its way: with the same day's form, it wins 7 of 10.

Before kickoff Nebraska was a 68% favorite. The biggest swing (Q3, 14:47 left): Unnecessary Roughness on Nebraska, 15 yards, worth 19 points of win probability to Nebraska.

Final

Northwestern Wildcats 21
Nebraska Cornhuskers 28

October 25, 2025 · Memorial Stadium (Lincoln, NE) · Closing line: Nebraska −7

Luck index +29 Nebraska lucky · −29 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. Northwestern wins 3, Nebraska wins 7.

  1. 1 NU 24 NEB 7
  2. 2 NU 23 NEB 13
  3. 3 NU 10 NEB 7
  4. 4 NU 21 NEB 23
  5. 5 NU 26 NEB 31
  6. 6 NU 14 NEB 21
  7. 7 NU 13 NEB 24
  8. 8 NU 7 NEB 24
  9. 9 NU 0 NEB 21
  10. 10 NU 10 NEB 38

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

Northwestern wins 29% of them, Nebraska 71%, counting the 5% still level after regulation as half each. The line is what actually happened: Nebraska by 7.

Show as a table
Final margin in the replaysShare of replays
Northwestern by 17+4.5%
Northwestern by 9–167.6%
Northwestern by 1–814.3%
Level after regulation5.2%
Nebraska by 1–823.9%
Nebraska by 9–1620.4%
Nebraska by 17+24.0%

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 +6.5 points to Northwestern: the final margin was Nebraska by 7, without the luck Nebraska by 13.5. 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.

  • J. Olsen, 40 yds made · 72% expected
  • K. Cunanan, 44 yds missed · 66% expected
  • J. Olsen, 25 yds made · 90% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Northwestern 3 for 29 yards, Nebraska 4 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 13:10 False Start on Northwestern, 5 yards · pre-snap +1% NEB +0.5 pts
Q3 14:47 Unnecessary Roughness on Nebraska, 15 yards +19% NEB +1.4 pts
Q3 8:26 Personal Foul on Northwestern, 14 yards +2% NEB +1.6 pts
Q3 6:01 Offside on Nebraska, 5 yards · pre-snap +1% NU +0.9 pts
Q3 2:46 Face Mask on Nebraska, 4 yards +1% NU +1.0 pts
Q4 12:48 Pass Interference on Nebraska, 15 yards +5% NU +2.1 pts
Q4 9:35 Holding on Northwestern, 10 yards 0% NEB +0.6 pts

When it happened

Nebraska’s chance of winning

As low as 40% and as high as 100%. 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 Nebraska was ahead in it, below while Northwestern was.
#WhenWhat happenedWin probability forNext drive
1 Q2 10:44 K. Cunanan missed a 44-yard field goalKicks · 66% expected for him +5% NU NEB: Turnover
2 Q3 14:47 Unnecessary Roughness on Nebraska, 15 yardsJudgment calls +19% NEB NU: Punt
3 Q4 12:48 Pass Interference on Nebraska, 15 yardsJudgment calls +5% NU NU: Touchdown
4 Q4 11:16 Northwestern converted 3rd & 23rd & 4th downs · 62% expectedNorthwestern’s two-point try was good3rd & 4th downs · 46% expected +9% NU NU: Turnover
5 Q4 8:09 Nebraska converted 3rd & 73rd & 4th downs · 33% expected +9% NEB NEB: Touchdown
6 Q4 6:24 Nebraska converted 3rd & 73rd & 4th downs · 33% expected +12% NEB NEB: Touchdown
7 Q4 5:14 Nebraska converted 3rd & 73rd & 4th downs · 34% expected +10% NEB NEB: Touchdown
8 Q4 3:20 Nebraska converted 3rd & 53rd & 4th downs · 41% expected +12% NEB NEB: Touchdown

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

Northwestern 2% · Nebraska 98%

Final margin
Nebraska by 7
Luck in points
6.5 for Northwestern
Luck-adjusted margin
Nebraska by 13.5
Replay with same day's form
Northwestern 29% · Nebraska 71% 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 9 2025 games · Northwestern · Nebraska

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