luckadjusted
CFB Week 4 · 2026

Week 13 2025 · November 22, 2025

Kansas at Iowa State, Week 13 2025: who deserved to win?

Iowa State beat Kansas 38–14, but the replays call it close to a coin flip: with the way both teams played, Iowa State wins 5 of 10.

Before kickoff Iowa State was a 58% favorite.

Final

Kansas Jayhawks 14
Iowa State Cyclones 38

November 22, 2025 · Jack Trice Stadium · Closing line: Iowa State −3

Luck index +51 Iowa State lucky · −51 Kansas

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. Kansas wins 5, Iowa State wins 5.

  1. 1 KU 24 ISU 3
  2. 2 KU 21 ISU 7
  3. 3 KU 30 ISU 20
  4. 4 KU 20 ISU 14
  5. 5 KU 31 ISU 28
  6. 6 KU 21 ISU 24
  7. 7 KU 28 ISU 34
  8. 8 KU 20 ISU 28
  9. 9 KU 10 ISU 23
  10. 10 KU 14 ISU 35

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

Kansas wins 51% of them, Iowa State 49%, counting the 3% still level after regulation as half each. The line is what actually happened: Iowa State by 24.

Show as a table
Final margin in the replaysShare of replays
Kansas by 17+10.3%
Kansas by 9–1617.3%
Kansas by 1–821.0%
Level after regulation2.6%
Iowa State by 1–828.9%
Iowa State by 9–1611.9%
Iowa State by 17+8.0%

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 +12.7 points to Iowa State: the final margin was Iowa State by 24, without the luck Iowa State by 11.3. 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.

  • L. Marjan, 41 yds missed · 74% expected
  • K. Konrardy, 55 yds made · 46% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Kansas 4 for 25 yards, Iowa State 3 for 30 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 2:43 Offside on Kansas, 5 yards · pre-snap +2% ISU +1.0 pts
Q1 2:36 Holding on Kansas, 10 yards, wiping out the play +5% ISU +3.1 pts
Q2 10:43 False Start on Kansas, 5 yards · pre-snap +1% ISU +0.7 pts
Q2 7:34 Offside on Kansas, 5 yards · pre-snap +1% ISU +0.8 pts
Q3 12:30 False Start on Iowa State, 5 yards · pre-snap +1% KU +0.7 pts
Q3 12:24 Holding on Iowa State, 10 yards +2% KU +1.4 pts
Q4 8:38 Pass Interference on Iowa State, 15 yards +1% KU +1.8 pts

When it happened

Iowa State’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 Iowa State was ahead in it, below while Kansas was.
#WhenWhat happenedWin probability forNext drive
1 Q1 12:09 Iowa State was stopped on 3rd & 13rd & 4th downs · 79% expected +4% KU ISU: Touchdown
2 Q1 9:35 Iowa State converted 3rd & 63rd & 4th downs · 41% expected +3% ISU ISU: Touchdown
3 Q1 6:49 Kansas converted 3rd & 43rd & 4th downs · 48% expected +3% KU KU: Punt
4 Q1 3:12 Iowa State converted 3rd & 43rd & 4th downs · 50% expected +2% ISU ISU: Touchdown
5 Q1 2:36 Holding on Kansas, 10 yards, wiping out the playJudgment calls +5% ISU ISU: Touchdown
6 Q3 10:59 Iowa State converted 3rd & 123rd & 4th downs · 27% expected +5% ISU ISU: Touchdown
7 Q3 6:24 Iowa State converted 3rd & 43rd & 4th downs · 50% expected +2% ISU ISU: Touchdown
8 Q3 4:22 Iowa State converted 3rd & 63rd & 4th downs · 41% expected +3% ISU ISU: 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

Kansas 3% · Iowa State 97%

Final margin
Iowa State by 24
Luck in points
12.7 for Iowa State
Luck-adjusted margin
Iowa State by 11.3
Replay with same day's form
Kansas 51% · Iowa State 49% 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 13 2025 games · Kansas · Iowa State

More from Week 13 2025

Every week 13 game, 2025