luckadjusted
CFB Week 4 · 2026

Week 1 2026 · September 6, 2026

Wisconsin vs Notre Dame, Week 1 2026: who deserved to win?

Notre Dame beat Wisconsin 41–13, and the replays lean its way: with the same day's form, it wins 8 of 10.

Before kickoff Notre Dame was a 91% favorite.

Final

Wisconsin Badgers 13
Notre Dame Fighting Irish 41

September 6, 2026 · Lambeau Field · Closing line: Notre Dame −21

Luck index +21 Notre Dame about even · −21 Wisconsin

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. Wisconsin wins 2, Notre Dame wins 8.

  1. 1 WIS 13 ND 0
  2. 2 WIS 20 ND 17
  3. 3 WIS 20 ND 23
  4. 4 WIS 16 ND 21
  5. 5 WIS 13 ND 21
  6. 6 WIS 9 ND 21
  7. 7 WIS 10 ND 24
  8. 8 WIS 17 ND 35
  9. 9 WIS 17 ND 41
  10. 10 WIS 0 ND 29

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

Wisconsin wins 21% of them, Notre Dame 79%, counting the 1% still level after regulation as half each. The line is what actually happened: Notre Dame by 28.

Show as a table
Final margin in the replaysShare of replays
Wisconsin by 17+1.7%
Wisconsin by 9–164.8%
Wisconsin by 1–814.5%
Level after regulation0.8%
Notre Dame by 1–823.1%
Notre Dame by 9–1625.0%
Notre Dame by 17+30.1%

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 Notre Dame: the final margin was Notre Dame by 28, without the luck Notre Dame by 27.3. 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.

  • G. Lahm, 27 yds made · 89% expected
  • S. Porath, 52 yds made · 50% expected
  • S. Porath, 26 yds made · 91% expected
  • G. Lahm, 36 yds made · 79% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Wisconsin 6 for 43 yards, Notre Dame 4 for 41 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 12:43 False Start on Notre Dame, 5 yards · pre-snap +1% WIS +0.7 pts
Q1 12:12 Offside on Wisconsin, 5 yards · pre-snap 0% ND +0.8 pts
Q1 1:15 Unnecessary Roughness on Wisconsin, 5 yards +1% ND +1.0 pts
Q2 13:04 Personal Foul on Notre Dame, 15 yards +1% WIS +1.6 pts
Q2 4:20 Holding on Notre Dame, 10 yards, wiping out the play +2% WIS +1.7 pts
Q2 2:22 Holding on Wisconsin, 10 yards +1% ND +0.6 pts
Q2 0:55 Delay of Game on Wisconsin, 5 yards · pre-snap 0% ND +0.2 pts
Q2 0:46 Personal Foul on Notre Dame, 11 yards +1% WIS +0.7 pts
Q3 10:48 Illegal Substitution on Wisconsin, 3 yards · pre-snap 0% ND +0.2 pts
Q4 5:18 Pass Interference on Wisconsin, 15 yards 0% ND +2.1 pts

When it happened

Notre Dame’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 Notre Dame was ahead in it, below while Wisconsin was.
#WhenWhat happenedWin probability forNext drive
1 Q1 10:02 Wisconsin converted 3rd & 63rd & 4th downs · 36% expected +2% WIS WIS: Field goal
2 Q1 4:13 Notre Dame was stopped on 3rd & 23rd & 4th downs · 67% expected +1% WIS ND: Touchdown
3 Q1 3:56 Notre Dame converted 4th & 13rd & 4th downs · 79% expected +1% ND ND: Touchdown
4 Q1 2:07 Notre Dame was stopped on 3rd & 103rd & 4th downs · 31% expected +2% WIS ND: Touchdown
5 Q2 13:04 Personal Foul on Notre Dame, 15 yardsJudgment calls +1% WIS WIS: Touchdown
6 Q2 8:56 Notre Dame was stopped on 3rd & 53rd & 4th downs · 38% expected +1% WIS ND: Field goal
7 Q2 6:42 Wisconsin converted 3rd & 53rd & 4th downs · 40% expected +3% WIS WIS: Punt
8 Q2 4:20 Holding on Notre Dame, 10 yards, wiping out the playJudgment calls +2% WIS WIS: Punt

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

Wisconsin 0% · Notre Dame 100%

Final margin
Notre Dame by 28
Luck in points
0.7 for Notre Dame
Luck-adjusted margin
Notre Dame by 27.3
Replay with same day's form
Wisconsin 21% · Notre Dame 79% 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 1 2026 games · Wisconsin · Notre Dame

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