luckadjusted
CFB Week 4 · 2026

Week 8 2025 · October 18, 2025

Baylor at TCU, Week 8 2025: who deserved to win?

TCU beat Baylor 42–36, and the replays back it up: with the way both teams actually played, TCU wins 9 of 10.

Before kickoff TCU was a 59% favorite.

Final

Baylor Bears 36
TCU Horned Frogs 42

October 18, 2025 · Amon G. Carter Stadium · Closing line: TCU −3.5

Luck index +7 TCU about even · −7 Baylor

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. Baylor wins 1, TCU wins 9.

  1. 1 BAY 35 TCU 26
  2. 2 BAY 20 TCU 23
  3. 3 BAY 19 TCU 28
  4. 4 BAY 20 TCU 33
  5. 5 BAY 23 TCU 41
  6. 6 BAY 21 TCU 43
  7. 7 BAY 21 TCU 47
  8. 8 BAY 16 TCU 47
  9. 9 BAY 10 TCU 48
  10. 10 BAY 0 TCU 46

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

Baylor wins 7% of them, TCU 93%, counting the 1% still level after regulation as half each. The line is what actually happened: TCU by 6.

Show as a table
Final margin in the replaysShare of replays
Baylor by 17+0.7%
Baylor by 9–161.4%
Baylor by 1–83.8%
Level after regulation0.9%
TCU by 1–89.6%
TCU by 9–1613.2%
TCU by 17+70.4%

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 +0.1 points to Baylor: the final margin was TCU by 6, without the luck TCU by 6.1. 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.

  • C. Hawkins, 42 yds made · 69% expected
  • C. Hawkins, 41 yds made · 71% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Baylor 5 for 34 yards, TCU 7 for 75 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 11:04 Holding on Baylor, 0 yards 0% TCU 0.0 pts
Q1 3:03 Pass Interference on TCU, 15 yards +4% BAY +1.6 pts
Q2 11:29 Personal Foul on Baylor, 9 yards +1% TCU +0.6 pts
Q2 7:28 Holding on TCU, 10 yards +1% BAY +0.6 pts
Q2 5:18 Unsportsmanlike Conduct on TCU, 15 yards +6% BAY +3.0 pts
Q2 3:10 Holding on Baylor, 10 yards +1% TCU +0.6 pts
Q2 1:49 Offside on Baylor, 5 yards · pre-snap +1% TCU +0.3 pts
Q2 1:46 False Start on TCU, 5 yards · pre-snap +1% BAY +0.5 pts
Q4 13:40 Pass Interference on TCU, 15 yards +2% BAY +1.6 pts
Q4 10:18 Ineligible Downfield on TCU, 0 yards 0% BAY 0.0 pts
Q4 3:04 Personal Foul on TCU, 15 yards 0% BAY +0.9 pts
Q4 0:27 Holding on Baylor, 10 yards +3% TCU +0.6 pts

When it happened

TCU’s chance of winning

As low as 42% and as high as 100%. 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 TCU was ahead in it, below while Baylor was.
#WhenWhat happenedWin probability forNext drive
1 Q1 4:46 Baylor converted 4th & 63rd & 4th downs · 39% expected +8% BAY BAY: Touchdown
2 Q2 11:29 TCU converted 3rd & 63rd & 4th downs · 45% expectedPersonal Foul on Baylor, 9 yardsJudgment calls +6% TCU TCU: Touchdown
3 Q2 10:42 Baylor converted 3rd & 103rd & 4th downs · 29% expected +6% BAY BAY: Turnover on downs
4 Q2 9:09 Baylor was stopped on 4th & 43rd & 4th downs · 48% expected +7% TCU BAY: Turnover
5 Q2 7:28 TCU was stopped on 3rd & 73rd & 4th downs · 42% expectedHolding on TCU, 10 yardsJudgment calls +4% BAY TCU: Punt
6 Q2 6:49 Baylor fumbled and TCU recoveredFumble bounces · loose balls are close to 50/50 +6% TCU BAY: Field goal
7 Q2 5:18 Unsportsmanlike Conduct on TCU, 15 yardsJudgment calls +6% BAY BAY: Field goal
8 Q2 0:11 TCU converted 3rd & 63rd & 4th downs · 37% expected +5% TCU TCU: 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

Baylor 17% · TCU 83%

Final margin
TCU by 6
Luck in points
0.1 for Baylor
Luck-adjusted margin
TCU by 6.1
Replay with same day's form
Baylor 7% · TCU 93% 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 · Baylor · TCU

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