luckadjusted
NFL Week 9 · 2026

Week 17 2025 · December 28, 2025

Steelers at Browns, Week 17 2025: who deserved to win?

The Browns beat the Steelers 13–6, but the replays call it close to a coin flip: with the way both teams played, the Browns win 5 of 10. Luck ran their way: 3rd & 4th downs alone were worth 10 points of win probability to the Browns.

Before kickoff the Steelers were 63% favorites. The biggest swing (Q4, 0:29 left): the Steelers got away with an interception-worthy throw, worth 12 points of win probability to the Steelers.

Final

Pittsburgh Steelers 6
Cleveland Browns 13

December 28, 2025 · FirstEnergy Stadium · Closing line: Steelers −4.5

Luck index +48 Browns lucky · −48 Steelers

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. Steelers win 5, Browns win 5.

  1. 1 PIT 26 CLE 3
  2. 2 PIT 20 CLE 6
  3. 3 PIT 27 CLE 16
  4. 4 PIT 28 CLE 21
  5. 5 PIT 10 CLE 7
  6. 6 PIT 16 CLE 18
  7. 7 PIT 15 CLE 19
  8. 8 PIT 13 CLE 22
  9. 9 PIT 3 CLE 17
  10. 10 PIT 14 CLE 34

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, drop, conversion and judgment call redrawn; everything else fixed. The narrowest view of luck.

How 4,000 replays ended

Steelers win 48% of them, Browns 52%, counting the 7% still level after regulation as half each. The line is what actually happened: Browns by 7.

Show as a table
Final margin in the replaysShare of replays
Steelers by 17+9.0%
Steelers by 9–1615.8%
Steelers by 1–820.6%
Level after regulation6.7%
Browns by 1–822.7%
Browns by 9–1615.8%
Browns by 17+9.3%

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 the Browns: the final margin was Browns by 7, without the luck Browns by 5.6. 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 the weather), and what happened.

  • A. Szmyt, 50 yds made · 66% expected
  • C. Boswell, 44 yds made · 81% expected
  • C. Boswell, 40 yds made · 88% expected
  • C. Boswell, 54 yds missed · 70% expected
  • A. Szmyt, 33 yds made · 94% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

Penalties: Steelers 4 for 34 yards, Browns 6 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 half toward luck; pre-snap fouls, which repeat, don’t count. How calls are valued

WhenFlagWin probability for
Q1 4:26 Offensive Pass Interference on the Steelers (Marquez Valdes-Scantling), 10 yards, wiping out the play +8% CLE +3.5 pts
Q1 4:00 Taunting on the Browns (Rayshawn Jenkins), 15 yards +4% PIT +1.8 pts
Q2 11:32 False Start on the Browns, 5 yards · pre-snap +1% PIT +0.4 pts
Q2 0:17 False Start on the Steelers, 5 yards · pre-snap +3% CLE +0.2 pts
Q3 11:17 Offensive Holding on the Browns, 9 yards, wiping out the play +7% PIT +2.3 pts
Q3 10:53 Roughing the Passer on the Steelers (Cameron Heyward), 15 yards +4% CLE +2.1 pts
Q3 7:58 False Start on the Browns, 5 yards · pre-snap +3% PIT +0.7 pts
Q4 12:53 False Start on the Browns, 5 yards · pre-snap +2% PIT +0.6 pts
Q4 9:55 False Start on the Steelers, 4 yards · pre-snap +4% CLE +0.9 pts
Q4 9:44 Offensive Holding on the Browns, 6 yards +2% PIT +0.5 pts

Steelers penalties, every game · Browns penalties, every game · All teams, 2025

When it happened

Browns’ chance of winning

Numbers mark the biggest luck moments, listed below.

nflfastR’s in-game win probability. It ignores the betting line, so it starts near even. Shaded above the middle while the Browns were ahead in it, below while the Steelers were.
#WhenWhat happenedWin probability forNext drive
1 Q1 12:54 The Browns converted 3rd & 73rd & 4th downs · 31% expected +10% CLE CLE: Field goal
2 Q1 4:26 Offensive Pass Interference on the Steelers (Marquez Valdes-Scantling), 10 yards, wiping out the playJudgment calls · 7 flags in 4292 snaps before, position avg 1 per 403 +8% CLE CLE: Turnover on downs
3 Q2 5:03 The Browns were intercepted on a well-placed throwInterceptions · defenses pick off well under 1% of clean throws +9% PIT CLE: Punt
4 Q3 12:46 The Steelers fumbled and recovered it themselvesFumble bounces · loose balls are close to 50/50 +8% PIT PIT: Punt
5 Q3 2:06 The Steelers converted 3rd & 53rd & 4th downs · 41% expected +8% PIT PIT: Missed field goal
6 Q4 12:59 C. Boswell missed a 54-yard field goalKicks · 70% expected for him, 72 of 87 from 45+ before +9% CLE PIT: Punt
7 Q4 9:55 The Steelers were stopped on 3rd & 53rd & 4th downs · 41% expectedFalse Start on the Steelers, 4 yardsPre-snap flags +9% CLE PIT: Punt
8 Q4 0:29 The Steelers got away with an interception-worthy throwInterceptions · defenses catch 54% of interception-worthy throws +12% PIT PIT: Turnover on downs

Missing players

Key players (usually on the field for half the snaps or more) who missed this game or part of it, valued by position and quality. The same players are missing in every replay, so this counts as luck in points only.

  • Jack Conklin (CLE T), out (IR) · 1.0 pts
  • David Njoku (CLE TE), out · 0.5 pts
  • Maliek Collins (CLE DT), out (IR) · 0.4 pts
  • Ethan Pocic (CLE C), out (IR) · 0.4 pts
  • Myles Harden (CLE CB), out · 0.2 pts
  • Quinshon Judkins (CLE RB), out (IR) · 0.1 pts
  • Broderick Jones (PIT T), out (IR) · 0.8 pts
  • T.J. Watt (PIT LB), out · 0.7 pts
  • James Pierre (PIT CB), out · 0.5 pts
  • Isaac Seumalo (PIT G), out · 0.3 pts
  • Brandin Echols (PIT CB), out · 0.2 pts

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

Steelers 20% · Browns 80%

Final margin
Browns by 7
Luck in points
1.4 for the Browns
Luck-adjusted margin
Browns by 5.6
Replay with same day's form
Steelers 48% · Browns 52% 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 win probability from nflfastR via nflverse; kicks valued against each kicker’s own record; drops and interception-worthy throws from FTN charting; injuries from snap counts and injury reports.

Methodology and validation · All Week 17 2025 games · Steelers · Browns

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