luckadjusted
CFB Week 4 · 2026

Week 10 2025 · November 1, 2025

Notre Dame at Boston College, Week 10 2025: who deserved to win?

Notre Dame beat Boston College 25–10, and the replays back it up: with the way both teams actually played, Notre Dame wins 10 of 10.

Before kickoff Notre Dame was a 98% favorite.

Final

Notre Dame Fighting Irish 25
Boston College Eagles 10

November 1, 2025 · Alumni Stadium (Chestnut Hill, MA) · Closing line: Notre Dame −31.5

Luck index +4 Notre Dame about even · −4 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. Notre Dame wins 10, Boston College wins 0.

  1. 1 ND 54 BC 10
  2. 2 ND 45 BC 10
  3. 3 ND 35 BC 3
  4. 4 ND 28 BC 0
  5. 5 ND 38 BC 14
  6. 6 ND 28 BC 7
  7. 7 ND 24 BC 7
  8. 8 ND 21 BC 7
  9. 9 ND 27 BC 17
  10. 10 ND 21 BC 17

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

Notre Dame wins 96% of them, Boston College 4%, counting the 1% still level after regulation as half each. The line is what actually happened: Notre Dame by 15.

Show as a table
Final margin in the replaysShare of replays
Notre Dame by 17+71.5%
Notre Dame by 9–1615.1%
Notre Dame by 1–88.6%
Level after regulation1.3%
Boston College by 1–82.6%
Boston College by 9–160.8%
Boston College by 17+0.2%

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 +12.2 points to Boston College: the final margin was Notre Dame by 15, without the luck Notre Dame by 27.2. 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.

  • E. Schmidt, 35 yds missed · 79% expected
  • L. Lombardo, 25 yds made · 94% expected
  • Extra point missed · 98% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Notre Dame 6 for 52 yards, Boston College 8 for 73 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 15:00 Pass Interference on Boston College, 15 yards 0% ND +1.3 pts
Q1 11:55 False Start on Notre Dame, 5 yards · pre-snap 0% BC +0.9 pts
Q1 1:44 Holding on Boston College, 10 yards, wiping out the play +1% ND +4.2 pts
Q2 14:34 False Start on Boston College, 5 yards · pre-snap 0% ND +1.0 pts
Q2 6:53 Unsportsmanlike Conduct on Notre Dame, 15 yards +1% BC +1.6 pts
Q2 0:09 Roughing the Passer on Boston College, 15 yards +1% ND +1.6 pts
Q3 5:00 Personal Foul on Notre Dame, 7 yards +5% BC +3.2 pts
Q3 1:32 Roughing the Passer on Boston College, 5 yards +1% ND +1.0 pts
Q4 15:00 Offside on Notre Dame, 5 yards · pre-snap +1% BC +1.5 pts
Q4 12:55 Personal Foul on Notre Dame, 15 yards +3% BC +2.5 pts
Q4 12:49 Delay of Game on Notre Dame, 5 yards · pre-snap +1% BC +0.6 pts
Q4 12:49 False Start on Boston College, 5 yards · pre-snap +1% ND +0.6 pts
Q4 4:48 Holding on Boston College, 10 yards 0% ND +1.0 pts
Q4 4:41 Intentional Grounding on Boston College, 8 yards 0% ND +0.5 pts

When it happened

Boston College’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 Boston College was ahead in it, below while Notre Dame was.
#WhenWhat happenedWin probability forNext drive
1 Q3 11:59 Boston College converted 3rd & 43rd & 4th downs · 45% expected +1% BC BC: Field goal
2 Q3 10:06 Boston College was stopped on 3rd & 13rd & 4th downs · 75% expected +2% ND BC: Field goal
3 Q3 9:23 Boston College converted 4th & 13rd & 4th downs · 74% expected +1% BC BC: Field goal
4 Q3 7:42 Boston College was stopped on 3rd & 13rd & 4th downs · 75% expected +2% ND BC: Field goal
5 Q3 7:04 Boston College converted 4th & 13rd & 4th downs · 74% expected +2% BC BC: Field goal
6 Q3 5:00 Personal Foul on Notre Dame, 7 yardsJudgment calls +5% BC BC: Field goal
7 Q4 14:13 Boston College fumbled and recovered itFumble bounces · loose balls are close to 50/50 +2% BC BC: Turnover
8 Q4 12:55 Personal Foul on Notre Dame, 15 yardsJudgment calls +3% BC 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

Notre Dame 100% · Boston College 0%

Final margin
Notre Dame by 15
Luck in points
12.2 for Boston College
Luck-adjusted margin
Notre Dame by 27.2
Replay with same day's form
Notre Dame 96% · Boston College 4% 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 10 2025 games · Notre Dame · Boston College

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