luckadjusted
CFB Week 4 · 2026

Week 8 2025 · October 18, 2025

Buffalo at Massachusetts, Week 8 2025: who deserved to win?

Buffalo beat Massachusetts 28–21, but the replays call it close to a coin flip: with the way both teams played, Buffalo wins 4 of 10. Luck ran its way: kicks alone were worth 19 points of win probability to Buffalo.

Buffalo won on an off day: it played far below what the matchup promised. In a fresh game against Massachusetts it would win 81% of the time; with this day’s form, 43%. The numbers

Before kickoff Buffalo was an 86% favorite. The biggest swing (Q4, 3:09 left): D. Morris missed a 54-yard field goal, worth 14 points of win probability to Buffalo.

Final

Buffalo Bulls 28
Massachusetts Minutemen 21

October 18, 2025 · Warren McGuirk Alumni Stadium · Closing line: Buffalo −16.5

Luck index +57 Buffalo lucky · −57 Massachusetts

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. Buffalo wins 4, Massachusetts wins 6.

  1. 1 BUF 33 MASS 10
  2. 2 BUF 34 MASS 19
  3. 3 BUF 16 MASS 7
  4. 4 BUF 27 MASS 24
  5. 5 BUF 23 MASS 25
  6. 6 BUF 13 MASS 19
  7. 7 BUF 14 MASS 25
  8. 8 BUF 7 MASS 23
  9. 9 BUF 14 MASS 33
  10. 10 BUF 3 MASS 30

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.

Buffalo won on an off day

It played far below what the matchup promised. In a fresh game against Massachusetts it would win 81% of the time; with this day’s form, 43%.

38 points apart for Buffalo: the gap is how differently this game went from what the two teams usually are.

UnitThis gameUsual levelBetter or worse than usual
Buffalo offenseEPA per play gained +0.07 +0.04 better by 0.03
Buffalo defenseEPA per play allowed +0.03 +0.04 better by 0.01
Massachusetts offenseEPA per play gained +0.03 +0.01 better by 0.01
Massachusetts defenseEPA per play allowed +0.07 +0.08 better by 0.01

EPA (expected points added) per play on competitive snaps, turnovers left out because they are valued as luck. Usual level: the team’s earlier games this season plus half of last season, pulled toward the league average. One team’s defense and the other team’s offense are the same snaps, so one game can’t fully say whose day it was; it shows how far this one was from both teams’ norms.

How 4,000 replays ended

Buffalo wins 43% of them, Massachusetts 57%, counting the 3% still level after regulation as half each. The line is what actually happened: Buffalo by 7.

Show as a table
Final margin in the replaysShare of replays
Buffalo by 17+12.4%
Buffalo by 9–1613.4%
Buffalo by 1–816.9%
Level after regulation2.6%
Massachusetts by 1–821.0%
Massachusetts by 9–1616.1%
Massachusetts by 17+17.6%

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 +7.7 points to Buffalo: the final margin was Buffalo by 7, without the luck Massachusetts by 0.7. 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.

  • J. Howes, 23 yds made · 92% expected
  • J. Howes, 47 yds made · 59% expected
  • D. Morris, 54 yds missed · 47% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Buffalo 9 for 49 yards, Massachusetts 10 for 55 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 3:30 False Start on Massachusetts, 5 yards · pre-snap +1% BUF +0.6 pts
Q1 2:16 Illegal Substitution on Massachusetts, 4 yards · pre-snap +1% BUF +0.6 pts
Q2 9:10 False Start on Buffalo, 5 yards · pre-snap +1% MASS +0.6 pts
Q2 0:26 Holding on Buffalo, 9 yards +1% MASS +0.6 pts
Q3 13:11 False Start on Massachusetts, 5 yards · pre-snap +3% BUF +1.4 pts
Q3 7:38 Pass Interference on Massachusetts, 2 yards +2% BUF +0.8 pts
Q3 6:05 False Start on Massachusetts, 5 yards · pre-snap +2% BUF +0.8 pts
Q3 5:35 Pass Interference on Massachusetts, 15 yards +5% BUF +1.6 pts
Q3 5:07 Intentional Grounding on Buffalo, 0 yards 0% MASS 0.0 pts
Q3 4:47 Intentional Grounding on Massachusetts, 0 yards 0% BUF 0.0 pts
Q3 3:50 Holding on Massachusetts, 10 yards +2% BUF +0.6 pts
Q4 14:26 Intentional Grounding on Massachusetts, 0 yards 0% BUF 0.0 pts
Q4 14:21 Offside on Buffalo, 5 yards · pre-snap +1% MASS +0.4 pts
Q4 11:34 Holding on Buffalo, 10 yards +3% MASS +0.6 pts
Q4 11:19 Illegal Forward Pass on Buffalo, 5 yards +1% MASS +0.3 pts
Q4 4:56 Holding on Buffalo, 10 yards +9% MASS +1.3 pts
Q4 2:31 Delay of Game on Buffalo, 5 yards · pre-snap +6% MASS +0.6 pts
Q4 1:46 Holding on Buffalo, 0 yards 0% MASS 0.0 pts
Q4 0:54 Unsportsmanlike Conduct on Massachusetts, 9 yards +4% BUF +0.5 pts

When it happened

Massachusetts’s chance of winning

As low as 0% and as high as 68%. 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 Massachusetts was ahead in it, below while Buffalo was.
#WhenWhat happenedWin probability forNext drive
1 Q3 5:37 Massachusetts converted 3rd & 123rd & 4th downs · 23% expected +8% MASS MASS: Punt
2 Q4 12:32 Buffalo converted 3rd & 83rd & 4th downs · 33% expected +9% BUF BUF: Punt
3 Q4 9:13 Massachusetts converted 4th & 13rd & 4th downs · 75% expected +8% MASS MASS: Missed field goal
4 Q4 6:14 Massachusetts converted 3rd & 33rd & 4th downs · 53% expected +8% MASS MASS: Missed field goal
5 Q4 4:56 Holding on Buffalo, 10 yardsJudgment calls +9% MASS MASS: Missed field goal
6 Q4 3:14 Massachusetts was stopped on 3rd & 113rd & 4th downs · 25% expected +8% BUF MASS: Missed field goal
7 Q4 3:09 D. Morris missed a 54-yard field goalKicks · 47% expected for him, 1 of 2 from 45+ before +14% BUF MASS: Punt
8 Q4 1:58 Buffalo converted 4th & 103rd & 4th downs · 28% expected +14% BUF BUF: 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

Buffalo 46% · Massachusetts 54%

Final margin
Buffalo by 7
Luck in points
7.7 for Buffalo
Luck-adjusted margin
Massachusetts by 0.7
Replay with same day's form
Buffalo 43% · Massachusetts 57% 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 8 2025 games · Buffalo · Massachusetts

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