luckadjusted
CFB Week 4 · 2026

Week 10 2025 · November 1, 2025

Virginia at California, Week 10 2025: who deserved to win?

Virginia beat California 31–21, but the replays call it close to a coin flip: with the way both teams played, Virginia wins 5 of 10.

Before kickoff Virginia was a 66% favorite. The biggest swing (Q4, 0:34 left): Return touchdown by Virginia, worth 24 points of win probability to Virginia.

Final

Virginia Cavaliers 31
California Golden Bears 21

November 1, 2025 · California Memorial Stadium · Closing line: Virginia −6.5

Luck index +46 Virginia lucky · −46 California

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. Virginia wins 5, California wins 5.

  1. 1 UVA 41 CAL 14
  2. 2 UVA 27 CAL 10
  3. 3 UVA 17 CAL 6
  4. 4 UVA 31 CAL 24
  5. 5 UVA 17 CAL 14
  6. 6 UVA 7 CAL 10
  7. 7 UVA 20 CAL 26
  8. 8 UVA 28 CAL 38
  9. 9 UVA 6 CAL 21
  10. 10 UVA 13 CAL 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

Virginia wins 54% of them, California 46%, counting the 2% still level after regulation as half each. The line is what actually happened: Virginia by 10.

Show as a table
Final margin in the replaysShare of replays
Virginia by 17+17.9%
Virginia by 9–1616.1%
Virginia by 1–820.1%
Level after regulation2.0%
California by 1–820.6%
California by 9–1611.9%
California by 17+11.5%

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 +1.4 points to California: the final margin was Virginia by 10, without the luck Virginia by 11.4. 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.

  • W. Bettridge, 26 yds made · 92% expected
  • W. Bettridge, 48 yds missed · 59% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Virginia 4 for 35 yards, California 3 for 21 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
Q2 1:59 Illegal Block on California, 13 yards +1% UVA +0.8 pts
Q3 14:15 False Start on California, 5 yards · pre-snap +1% UVA +0.6 pts
Q3 13:08 Offside on Virginia, 5 yards · pre-snap 0% CAL +0.3 pts
Q4 12:57 Unnecessary Roughness on Virginia, 15 yards 0% CAL +0.9 pts
Q4 9:28 Holding on Virginia, 10 yards +5% CAL +1.6 pts
Q4 8:37 False Start on Virginia, 5 yards · pre-snap +4% CAL +1.0 pts
Q4 8:03 Holding on California, 3 yards +1% UVA +0.2 pts

When it happened

California’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 California was ahead in it, below while Virginia was.
#WhenWhat happenedWin probability forNext drive
1 Q3 5:44 Virginia fumbled and recovered itFumble bounces · loose balls are close to 50/50 +5% UVA UVA: Touchdown
2 Q4 11:09 Virginia was stopped on 3rd & 23rd & 4th downs · 65% expected +6% CAL UVA: Punt
3 Q4 9:28 Holding on Virginia, 10 yardsJudgment calls +5% CAL CAL: Punt
4 Q4 7:01 California converted 3rd & 43rd & 4th downs · 43% expected +9% CAL CAL: Punt
5 Q4 6:16 California fumbled and recovered itFumble bounces · loose balls are close to 50/50 +10% CAL CAL: Punt
6 Q4 4:23 Virginia converted 3rd & 63rd & 4th downs · 40% expected +11% UVA UVA: Turnover on downs
7 Q4 0:45 Virginia was stopped on 4th & 23rd & 4th downs · 64% expected +13% CAL –
8 Q4 0:34 Return touchdown by VirginiaSpecial teams +24% UVA –

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

Virginia 97% · California 3%

Final margin
Virginia by 10
Luck in points
1.4 for California
Luck-adjusted margin
Virginia by 11.4
Replay with same day's form
Virginia 54% · California 46% 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 · Virginia · California

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