luckadjusted
CFB Week 4 · 2026

Week 4 2025 · September 20, 2025

Wagner at Central Michigan, Week 4 2025: who deserved to win?

Central Michigan beat Wagner 49–10, and the replays back it up: with the way both teams actually played, Central Michigan wins 10 of 10.

Before kickoff Central Michigan was a 97% favorite.

Final

Wagner Seahawks 10
Central Michigan Chippewas 49

September 20, 2025 · Kelly/Shorts Stadium · Closing line: Central Michigan −29.5

Luck index 0 Central Michigan about even · 0 Wagner

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. Wagner wins 0, Central Michigan wins 10.

  1. 1 WAG 3 CMU 17
  2. 2 WAG 3 CMU 24
  3. 3 WAG 10 CMU 35
  4. 4 WAG 6 CMU 34
  5. 5 WAG 0 CMU 31
  6. 6 WAG 7 CMU 42
  7. 7 WAG 0 CMU 38
  8. 8 WAG 0 CMU 42
  9. 9 WAG 0 CMU 45
  10. 10 WAG 0 CMU 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.

How 4,000 replays ended

Wagner wins 0% of them, Central Michigan 100%. The line is what actually happened: Central Michigan by 39.

Show as a table
Final margin in the replaysShare of replays
Wagner by 17+0.0%
Wagner by 9–160.0%
Wagner by 1–80.1%
Level after regulation0.1%
Central Michigan by 1–80.7%
Central Michigan by 9–161.5%
Central Michigan by 17+97.7%

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 +3.1 points to Central Michigan: the final margin was Central Michigan by 39, without the luck Central Michigan by 35.9. Luck shares are the fitted ones (how much of each kind is luck).

Penalties: Wagner 3 for 25 yards, Central Michigan 7 for 65 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 8:31 Offside on Wagner, 3 yards · pre-snap +1% WAG +1.8 pts
Q1 6:34 Running Into the Kicker on Central Michigan, 5 yards 0% WAG +3.1 pts
Q1 5:56 Face Mask on Central Michigan, 15 yards 0% WAG +2.9 pts
Q1 5:09 Illegal Use of Hands on Wagner, 10 yards 0% CMU +1.3 pts
Q1 4:04 Illegal Use of Hands on Central Michigan, 5 yards 0% WAG +0.3 pts
Q2 12:59 Personal Foul on Central Michigan, 15 yards 0% WAG +2.5 pts
Q3 6:24 False Start on Central Michigan, 5 yards · pre-snap 0% WAG +0.3 pts
Q3 5:57 Unsportsmanlike Conduct on Central Michigan, 15 yards 0% WAG +1.6 pts
Q3 2:48 Pass Interference on Wagner, 12 yards, wiping out the play 0% CMU +2.3 pts
Q4 14:23 False Start on Central Michigan, 5 yards · pre-snap 0% WAG +0.3 pts

When it happened

Central Michigan’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 Central Michigan was ahead in it, below while Wagner was.
#WhenWhat happenedWin probability forNext drive
1 Q1 14:20 Return touchdown by Central MichiganSpecial teams +1% CMU CMU: Touchdown
2 Q1 12:44 Wagner converted 4th & 23rd & 4th downs · 56% expected +0% WAG WAG: Turnover
3 Q1 11:49 Wagner fumbled and Central Michigan recoveredFumble bounces · loose balls are close to 50/50 +0% CMU WAG: Touchdown
4 Q1 8:31 Offside on Wagner, 3 yardsPre-snap flags +1% WAG CMU: Touchdown
5 Q1 5:56 Face Mask on Central Michigan, 15 yardsJudgment calls +0% WAG WAG: Punt
6 Q2 12:59 Personal Foul on Central Michigan, 15 yardsJudgment calls +0% WAG WAG: Field goal
7 Q2 10:11 Wagner converted 3rd & 43rd & 4th downs · 41% expected +0% WAG WAG: Field goal
8 Q3 2:48 Pass Interference on Wagner, 12 yards, wiping out the playJudgment calls +0% CMU CMU: Turnover

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

Wagner 0% · Central Michigan 100%

Final margin
Central Michigan by 39
Luck in points
3.1 for Central Michigan
Luck-adjusted margin
Central Michigan by 35.9
Replay with same day's form
Wagner 0% · Central Michigan 100% 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 4 2025 games · Wagner · Central Michigan

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