luckadjusted
NHL Week 1 · 2026-27

2025-26 regular season · December 21, 2025

No betting line for this game, so there is no before-puck-drop or fresh-game number.

Sabres at Devils, Dec 21, 2025: who deserved to win?

The Sabres beat the Devils 3–1, but the replays lean toward the Devils: they take 7 of 10 with the same day's form. Luck ran their way: shooting alone was worth 37 points of win probability to the Sabres.

The biggest swing (P2, 3:55 left): Zach Benson scored on a snap shot from 21 feet, worth 22 points of win probability to the Sabres.

Final

Buffalo Sabres 3
New Jersey Devils 1

December 21, 2025 · Prudential Center

Luck index +66 Sabres very lucky · −66 Devils

Each team’s own shots from this game, resampled into new games 4,000 times, each a goal at its chance, with the power plays the penalties gave and the pulled goalie at the end: with the way both teams actually played, how often does this performance win? How the replay works

Ten replays. Sabres win 3, Devils win 7.

  1. 1 BUF 5 NJD 2
  2. 2 BUF 3 NJD 2
  3. 3 BUF 2 NJD 1
  4. 4 BUF 0 NJD 1
  5. 5 BUF 2 NJD 3
  6. 6 BUF 1 NJD 3
  7. 7 BUF 1 NJD 3
  8. 8 BUF 2 NJD 5
  9. 9 BUF 0 NJD 3
  10. 10 BUF 1 NJD 5

Three other ways to ask

Each answers a different question, so none of them replaces the replay above.

No closing line for this game.

Needs the closing line, which this game has not got.

Every shot redrawn at its chance, overtime and the shootout replayed as near coin flips; the shots themselves and every call fixed. The narrowest view of luck.

How 3,999.9 replays ended

Sabres win 34% of them, Devils 66%. The line is what actually happened: Sabres by 2.

Show as a table
Final margin in the replaysShare of replays
Sabres by 3+6.2%
Sabres by 26.0%
Sabres by 122.3%
Devils by 125.4%
Devils by 212.8%
Devils by 3+27.3%

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 post hit in a blowout counts for nothing; the same post with a minute left in 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 +1.6 goals to the Sabres: the final margin was Sabres by 2, without the luck Sabres by 0.4. Luck shares are the fitted ones (how much of each kind is luck).
ShootingUnblocked attemptsGoalsExpected goalsAbove expected
Sabres3321.31+0.69
Devils4713.08−2.08

Regulation with both goalies in. Expected goals: our model of each shot’s chance from where and how it was taken (distance, angle, shot type, rebound, rush, strength), adjusted for the shooter’s and the goalie’s records. A team above expected finished better or met a weaker night in goal; 75% of the gap counts as luck (why that share).

Calls

Every penalty that put a team on the power play, and every goal taken off the board on review, with what it did to the helped team’s chance of winning at that moment. Calls don’t count toward luck by default: who draws penalties repeats from game to game like a skill (how calls are valued). Switch them on below.

WhenCallWin probability for
P1 0:12 High sticking on the Sabres (Zach Benson): 2 minutes on the power play +4% NJD

When it happened

Devils’ chance of winning

As low as 0% and as high as 72%. Numbers mark the biggest luck moments, listed below.

Our in-game win probability: the score and the time left, starting from the betting line (or the home edge alone when there is none), with goals at the league’s rates for the score. Overtime is drawn at a fixed width. Shaded above the middle while the Devils were ahead in it, below while the Sabres were.
#WhenWhat happenedWin probability forNext drive
1 P1 11:09 Jack Hughes scored on a snap shot from 30 feetShooting · 9% chance +15% NJD –
2 P1 0:12 High sticking on the Sabres (Zach Benson): 2 minutes on the power playPenalty calls +4% NJD –
3 P2 17:34 Josh Norris scored on a snap shot from 10 feetShooting · 17% chance +16% BUF –
4 P2 3:55 Zach Benson scored on a snap shot from 21 feetShooting · 10% chance +22% BUF –
5 P3 11:20 Timo Meier missed the net with a wrist shot from 13 feetShooting · 13% chance +4% BUF –
6 P3 11:02 Timo Meier missed the net with a tip from 7 feetShooting · 11% chance +3% BUF –
7 P3 7:57 Jesper Bratt’s snap shot from 19 feet was savedShooting · 13% chance +5% BUF –
8 P3 2:20 Jesper Bratt’s wrist shot from 17 feet was savedShooting · 14% chance +6% BUF –

Adjust the assumptions

Think finishing is more skill than we do, or that the calls were luck? Change it and the coin-flip replay reruns in your browser.

Only coin-flips re-rolled

Sabres 63% · Devils 37%

Final margin
Sabres by 2
Luck in goals
1.6 for the Sabres
Luck-adjusted margin
Sabres by 0.4
Replay with same day's form
Sabres 34% · Devils 66% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts
Flip a play

Force the other outcome, in this game and in every replay: a goal becomes a save, a post goes in, a penalty goes the other way.

About these numbers

Play-by-play from the NHL via fastRhockey; expected goals, in-game win probability and the replays are our own models, fitted on every game since 2018-19 (methodology and validation). Blocked shots aren’t replayed (their location is the block’s, not the shot’s). No betting line for this game, so there is no before-puck-drop or fresh-game number.

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