luckadjusted
CFB Week 4 · 2026

Week 1 2026 · September 5, 2026

Boston College at Cincinnati, Week 1 2026: who deserved to win?

Cincinnati beat Boston College 34–15, and the replays back it up: with the way both teams actually played, Cincinnati wins 9 of 10.

Before kickoff Cincinnati was a 68% favorite. The biggest swing (Q2, 14:17 left): Cincinnati converted 4th & 5, worth 13 points of win probability to Cincinnati.

Final

Boston College Eagles 15
Cincinnati Bearcats 34

September 5, 2026 · Nippert Stadium · Closing line: Cincinnati −7

Luck index +11 Cincinnati about even · −11 Boston College

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. Boston College wins 1, Cincinnati wins 9.

  1. 1 BC 21 CIN 14
  2. 2 BC 21 CIN 24
  3. 3 BC 17 CIN 24
  4. 4 BC 13 CIN 24
  5. 5 BC 23 CIN 38
  6. 6 BC 23 CIN 41
  7. 7 BC 6 CIN 28
  8. 8 BC 14 CIN 40
  9. 9 BC 14 CIN 45
  10. 10 BC 3 CIN 41

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

Boston College wins 11% of them, Cincinnati 89%, counting the 1% still level after regulation as half each. The line is what actually happened: Cincinnati by 19.

Show as a table
Final margin in the replaysShare of replays
Boston College by 17+0.7%
Boston College by 9–162.5%
Boston College by 1–87.0%
Level after regulation0.6%
Cincinnati by 1–816.4%
Cincinnati by 9–1617.5%
Cincinnati by 17+55.2%

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 +12.1 points to Cincinnati: the final margin was Cincinnati by 19, without the luck Cincinnati by 6.9. 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.

  • S. Rusnak, 54 yds made · 47% expected
  • L. Lombardo, 35 yds missed · 84% expected
  • S. Rusnak, 44 yds made · 65% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Boston College 7 for 37 yards, Cincinnati 6 for 54 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 7:36 Delay of Game on Boston College, 5 yards · pre-snap +1% BC +0.2 pts
Q1 5:00 Holding on Cincinnati, 6 yards +1% BC +0.4 pts
Q1 3:08 False Start on Boston College, 5 yards · pre-snap +2% CIN +0.8 pts
Q2 14:17 Offside on Boston College, 5 yards · pre-snap +2% CIN +0.9 pts
Q2 14:17 False Start on Cincinnati, 5 yards · pre-snap +1% BC +0.7 pts
Q2 3:46 False Start on Boston College, 5 yards · pre-snap +1% CIN +0.8 pts
Q2 2:00 Pass Interference on Cincinnati, 9 yards +1% BC +0.7 pts
Q2 2:00 False Start on Boston College, 5 yards · pre-snap 0% CIN +0.2 pts
Q3 10:48 Holding on Boston College, 7 yards 0% CIN +1.2 pts
Q3 10:48 False Start on Boston College, 5 yards · pre-snap +1% CIN +1.2 pts
Q3 4:37 Roughing the Passer on Cincinnati, 15 yards, wiping out the play +1% BC +4.5 pts
Q3 4:37 Illegal Substitution on Cincinnati, 5 yards · pre-snap 0% BC +0.3 pts
Q3 2:01 Personal Foul on Cincinnati, 14 yards +1% BC +0.9 pts

When it happened

Cincinnati’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 Cincinnati was ahead in it, below while Boston College was.
#WhenWhat happenedWin probability forNext drive
1 Q1 15:00 Boston College was stopped on 3rd & 63rd & 4th downs · 39% expected +2% CIN BC: Punt
2 Q1 9:46 Cincinnati was stopped on 3rd & 113rd & 4th downs · 28% expected +2% BC CIN: Field goal
3 Q1 8:27 Boston College converted 3rd & 33rd & 4th downs · 55% expectedS. Rusnak made a 54-yard field goalKicks · 47% expected for him, 2 of 3 from 45+ before +5% CIN BC: Turnover on downs
4 Q1 3:08 Boston College was stopped on 3rd & 123rd & 4th downs · 25% expectedBoston College converted 4th & 33rd & 4th downs · 54% expectedFalse Start on Boston College, 5 yardsPre-snap flags +3% BC BC: Punt
5 Q2 15:00 Boston College was stopped on 3rd & 93rd & 4th downs · 30% expected +2% CIN BC: Punt
6 Q2 14:17 Cincinnati converted 3rd & 23rd & 4th downs · 65% expectedCincinnati was stopped on 3rd & 93rd & 4th downs · 32% expectedCincinnati converted 4th & 53rd & 4th downs · 44% expectedCincinnati converted 3rd & 63rd & 4th downs · 33% expectedCincinnati fumbled and recovered itFumble bounces · loose balls are close to 50/50Offside on Boston College, 5 yardsPre-snap flagsFalse Start on Cincinnati, 5 yardsPre-snap flags +13% CIN CIN: Touchdown
7 Q2 2:00 Boston College converted 3rd & 103rd & 4th downs · 28% expectedBoston College converted 3rd & 153rd & 4th downs · 21% expectedPass Interference on Cincinnati, 9 yardsJudgment callsFalse Start on Boston College, 5 yardsPre-snap flags +8% BC BC: Missed field goal
8 Q2 0:12 L. Lombardo missed a 35-yard field goalKicks · 84% expected for him +4% CIN BC: 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

Boston College 16% · Cincinnati 84%

Final margin
Cincinnati by 19
Luck in points
12.1 for Cincinnati
Luck-adjusted margin
Cincinnati by 6.9
Replay with same day's form
Boston College 11% · Cincinnati 89% 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 · Boston College · Cincinnati

More from Week 1 2026

Every week 1 game, 2026