luckadjusted
NHL Week 1 · 2026-27

2025-26 regular season · November 20, 2025

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

Golden Knights at Mammoth, Nov 20, 2025: who deserved to win?

The Golden Knights beat the Mammoth 4–1, but the replays call it close to a coin flip: with the way both teams played, the Golden Knights win 5 of 10. Luck ran their way: shooting alone was worth 19 points of win probability to the Golden Knights.

The biggest swing (P2, 3:09 left): Jack Eichel scored on a backhand shot from 5 feet, worth 14 points of win probability to the Golden Knights.

Final

Vegas Golden Knights 4
Utah Mammoth 1

November 20, 2025 · Delta Center

Luck index +48 Golden Knights lucky · −48 Mammoth

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. Golden Knights win 5, Mammoth win 5.

  1. 1 VGK 5 UTA 0
  2. 2 VGK 4 UTA 1
  3. 3 VGK 4 UTA 2
  4. 4 VGK 5 UTA 4
  5. 5 VGK 6 UTA 5
  6. 6 VGK 2 UTA 3
  7. 7 VGK 3 UTA 4
  8. 8 VGK 3 UTA 5
  9. 9 VGK 3 UTA 6
  10. 10 VGK 1 UTA 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

Golden Knights win 52% of them, Mammoth 48%. The line is what actually happened: Golden Knights by 3.

Show as a table
Final margin in the replaysShare of replays
Golden Knights by 3+22.0%
Golden Knights by 210.0%
Golden Knights by 120.5%
Mammoth by 119.3%
Mammoth by 210.3%
Mammoth by 3+18.0%

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 +2.2 goals to the Golden Knights: the final margin was Golden Knights by 3, without the luck Golden Knights by 0.8. Luck shares are the fitted ones (how much of each kind is luck).
ShootingUnblocked attemptsGoalsExpected goalsAbove expected
Golden Knights3943.21+0.79
Mammoth4213.10−2.10

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 9:34 Cross checking on the Mammoth (Brandon Tanev): 2 minutes on the power play +4% VGK
P2 13:44 Roughing on the Mammoth (Logan Cooley): 2 minutes on the power play +3% VGK
P2 13:33 Interference on the Golden Knights (Braeden Bowman): 2 minutes on the power play +3% UTA
P3 15:49 Interference on the Golden Knights (Brayden McNabb): 2 minutes on the power play +1% UTA
P3 2:16 Cross checking on the Mammoth (Mikhail Sergachev): 2 minutes on the power play 0% VGK

When it happened

Mammoth’ chance of winning

As low as 0% and as high as 54%. 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 Mammoth were ahead in it, below while the Golden Knights were.
#WhenWhat happenedWin probability forNext drive
1 P1 9:34 Cross checking on the Mammoth (Brandon Tanev): 2 minutes on the power playPenalty calls +4% VGK –
2 P2 17:22 Zach Whitecloud missed the net with a snap shot from 19 feetShooting · 23% chance +4% UTA –
3 P2 16:51 Jack Eichel scored on a snap shot from 5 feetShooting · 34% chance +13% VGK –
4 P2 16:32 Ben Hutton scored on a snap shot from 22 feetShooting · 12% chance +14% VGK –
5 P2 13:22 Nate Schmidt scored on a snap shot from 28 feetShooting · 11% chance +14% UTA –
6 P2 5:01 Michael Carcone’s snap shot from 9 feet was savedShooting · 23% chance +5% VGK –
7 P2 3:09 Jack Eichel scored on a backhand shot from 5 feetShooting · 13% chance +14% VGK –
8 P3 19:15 Braeden Bowman scored on a tip from 8 feetShooting · 8% chance +6% VGK –

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

Golden Knights 69% · Mammoth 31%

Final margin
Golden Knights by 3
Luck in goals
2.2 for the Golden Knights
Luck-adjusted margin
Golden Knights by 0.8
Replay with same day's form
Golden Knights 52% · Mammoth 48% 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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