luckadjusted
CFB Week 4 · 2026

Week 2 2026 · September 12, 2026

Memphis at Boise State, Week 2 2026: who deserved to win?

Boise State beat Memphis 38–20, but the replays call it close to a coin flip: with the way both teams played, Boise State wins 5 of 10. Luck ran its way: kicks alone were worth 9 points of win probability to Boise State.

Before kickoff Boise State was a 73% favorite. The biggest swing (Q3, 6:27 left): Return touchdown by Boise State, worth 9 points of win probability to Boise State.

Final

Memphis Tigers 20
Boise State Broncos 38

September 12, 2026 · Albertsons Stadium · Closing line: Boise State −9.5

Luck index +50 Boise State lucky · −50 Memphis

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. Memphis wins 5, Boise State wins 5.

  1. 1 MEM 49 BOIS 23
  2. 2 MEM 56 BOIS 41
  3. 3 MEM 24 BOIS 14
  4. 4 MEM 38 BOIS 31
  5. 5 MEM 34 BOIS 31
  6. 6 MEM 27 BOIS 30
  7. 7 MEM 34 BOIS 41
  8. 8 MEM 21 BOIS 31
  9. 9 MEM 28 BOIS 42
  10. 10 MEM 17 BOIS 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

Memphis wins 50% of them, Boise State 50%, counting the 2% still level after regulation as half each. The line is what actually happened: Boise State by 18.

Show as a table
Final margin in the replaysShare of replays
Memphis by 17+14.3%
Memphis by 9–1616.3%
Memphis by 1–819.4%
Level after regulation2.4%
Boise State by 1–823.5%
Boise State by 9–1612.2%
Boise State by 17+11.9%

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 +0.4 points to Memphis: the final margin was Boise State by 18, without the luck Boise State by 18.4. 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.

  • C. Moore, 39 yds made · 74% expected
  • P. Laforge, 33 yds made · 83% expected
  • P. Laforge, 36 yds made · 80% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Memphis 5 for 54 yards, Boise State 10 for 87 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 Illegal Formation on Boise State, 5 yards · pre-snap +2% MEM +1.4 pts
Q1 9:09 Pass Interference on Boise State, 12 yards +3% MEM +1.7 pts
Q1 3:11 Holding on Boise State, 10 yards +1% MEM +0.6 pts
Q1 2:40 Personal Foul on Memphis, 13 yards +2% BOIS +0.8 pts
Q2 14:36 Pass Interference on Memphis, 15 yards +3% BOIS +1.3 pts
Q2 12:25 Pass Interference on Boise State, 15 yards +2% MEM +0.9 pts
Q2 7:30 Delay of Game on Boise State, 5 yards · pre-snap +1% MEM +0.4 pts
Q2 6:49 Illegal Formation on Boise State, 5 yards · pre-snap +1% MEM +1.2 pts
Q2 2:07 Pass Interference on Boise State, 15 yards +3% MEM +1.0 pts
Q3 14:09 Holding on Memphis, 10 yards +4% BOIS +1.5 pts
Q3 8:48 Unsportsmanlike Conduct on Memphis, 6 yards +3% BOIS +1.1 pts
Q3 8:10 False Start on Boise State, 5 yards · pre-snap +2% MEM +0.8 pts
Q3 8:06 Holding on Memphis, 10 yards +1% BOIS +1.3 pts
Q4 9:21 Holding on Boise State, 10 yards 0% MEM +0.9 pts
Q4 8:09 False Start on Boise State, 5 yards · pre-snap 0% MEM +0.2 pts

When it happened

Boise State’s chance of winning

As low as 30% 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 Boise State was ahead in it, below while Memphis was.
#WhenWhat happenedWin probability forNext drive
1 Q1 13:52 Boise State converted 3rd & 93rd & 4th downs · 35% expected +4% BOIS BOIS: Field goal
2 Q2 12:26 Boise State was stopped on 4th & 23rd & 4th downs · 60% expected +8% MEM BOIS: Punt
3 Q2 9:33 P. Laforge made a 33-yard field goalKicks · 83% expected for him +6% BOIS MEM: Touchdown
4 Q2 7:30 Boise State was stopped on 3rd & 53rd & 4th downs · 48% expectedDelay of Game on Boise State, 5 yardsPre-snap flags +5% MEM BOIS: Punt
5 Q2 3:02 Boise State was stopped on 3rd & 43rd & 4th downs · 53% expected +4% MEM BOIS: Touchdown
6 Q2 2:28 Boise State converted 4th & 63rd & 4th downs · 42% expected +8% BOIS BOIS: Touchdown
7 Q3 14:09 Holding on Memphis, 10 yardsJudgment calls +4% BOIS BOIS: Touchdown
8 Q3 6:27 Return touchdown by Boise StateSpecial teams +9% BOIS BOIS: 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

Memphis 0% · Boise State 100%

Final margin
Boise State by 18
Luck in points
0.4 for Memphis
Luck-adjusted margin
Boise State by 18.4
Replay with same day's form
Memphis 50% · Boise State 50% 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 2 2026 games · Memphis · Boise State

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