luckadjusted
CFB Week 4 · 2026

Week 1 2026 · September 5, 2026

Arkansas State at Memphis, Week 1 2026: who deserved to win?

Memphis beat Arkansas State 42–24, and the replays back it up: with the way both teams actually played, Memphis wins 9 of 10.

Before kickoff Memphis was a 75% favorite.

Final

Arkansas State Red Wolves 24
Memphis Tigers 42

September 5, 2026 · Simmons Bank Liberty Stadium · Closing line: Memphis −10.5

Luck index +12 Memphis about even · −12 Arkansas State

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. Arkansas State wins 1, Memphis wins 9.

  1. 1 ARST 38 MEM 31
  2. 2 ARST 35 MEM 38
  3. 3 ARST 38 MEM 45
  4. 4 ARST 38 MEM 49
  5. 5 ARST 30 MEM 44
  6. 6 ARST 27 MEM 45
  7. 7 ARST 34 MEM 56
  8. 8 ARST 10 MEM 35
  9. 9 ARST 34 MEM 65
  10. 10 ARST 26 MEM 66

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

Arkansas State wins 12% of them, Memphis 88%, counting the 1% still level after regulation as half each. The line is what actually happened: Memphis by 18.

Show as a table
Final margin in the replaysShare of replays
Arkansas State by 17+1.3%
Arkansas State by 9–163.3%
Arkansas State by 1–86.6%
Level after regulation0.9%
Memphis by 1–816.8%
Memphis by 9–1617.8%
Memphis by 17+53.4%

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 +0.2 points to Arkansas State: the final margin was Memphis by 18, without the luck Memphis by 18.2. Luck shares are the fitted ones (how much of each kind is luck).

Penalties: Arkansas State 5 for 37 yards, Memphis 4 for 45 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 13:44 Roughing the Passer on Memphis, 15 yards +3% ARST +1.5 pts
Q1 3:31 Tripping on Arkansas State, 15 yards +5% MEM +2.4 pts
Q2 12:07 Pass Interference on Arkansas State, 2 yards +3% MEM +1.9 pts
Q2 12:00 Holding on Arkansas State, 10 yards +2% MEM +1.1 pts
Q2 6:54 Illegal Block on Memphis, 10 yards +1% ARST +0.6 pts
Q3 2:50 Pass Interference on Memphis, 15 yards +1% ARST +1.1 pts
Q3 0:28 False Start on Arkansas State, 5 yards · pre-snap +1% MEM +0.9 pts
Q4 8:13 False Start on Memphis, 5 yards · pre-snap 0% ARST +0.6 pts
Q4 4:52 Offside on Arkansas State, 5 yards · pre-snap 0% MEM +1.8 pts

When it happened

Memphis’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 Memphis was ahead in it, below while Arkansas State was.
#WhenWhat happenedWin probability forNext drive
1 Q1 13:44 Roughing the Passer on Memphis, 15 yardsJudgment calls +3% ARST ARST: Turnover
2 Q1 10:11 Memphis was stopped on 3rd & 13rd & 4th downs · 80% expected +3% ARST MEM: Punt
3 Q1 3:31 Tripping on Arkansas State, 15 yardsJudgment calls +5% MEM MEM: Touchdown
4 Q1 1:44 C. Van Andel made a 48-yard field goalKicks · 59% expected for him, 8 of 12 from 45+ before +3% ARST ARST: Touchdown
5 Q2 12:07 Pass Interference on Arkansas State, 2 yardsJudgment calls +3% MEM MEM: Touchdown
6 Q2 10:41 Arkansas State converted 3rd & 103rd & 4th downs · 29% expected +5% ARST ARST: Touchdown
7 Q2 5:13 Memphis converted 3rd & 103rd & 4th downs · 31% expected +5% MEM MEM: Touchdown
8 Q3 8:02 Arkansas State converted 3rd & 43rd & 4th downs · 50% expected +2% ARST ARST: 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

Arkansas State 0% · Memphis 100%

Final margin
Memphis by 18
Luck in points
0.2 for Arkansas State
Luck-adjusted margin
Memphis by 18.2
Replay with same day's form
Arkansas State 12% · Memphis 88% 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 1 2026 games · Arkansas State · Memphis

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