luckadjusted
NHL Week 6 · 2026-27

2026-27 regular season · October 19, 2026

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

Penguins at Mammoth, Oct 19, 2026: who deserved to win?

The Mammoth beat the Penguins 5–4, and the replays lean their way: with the same day's form, they win 7 of 10.

The biggest swing (P2, 8:16 left): Nate Schmidt scored on a slap shot from 60 feet, worth 21 points of win probability to the Mammoth.

Luck index +27 Mammoth lucky · −27 Penguins

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. Penguins win 3, Mammoth win 7.

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

Our prediction before puck drop

We had the Mammoth by 0.3, 55% to win. The Mammoth won by 1: the pick was right. The final margin was 0.7 goals from ours; 78% of games like this end further from the forecast than that.

Show as a table
OutcomeChance
Penguins win45.3%
Mammoth win54.7%
Middle 50%: Penguins by 2 to Mammoth by 250%
Middle 90%: Penguins by 4 to Mammoth by 490%
Middle 95%: Penguins by 4 to Mammoth by 595%
Exactly Mammoth by 121.6%
Exactly Penguins by 119.4%
Exactly Mammoth by 313.2%
Exactly Mammoth by 210.4%
Exactly Penguins by 310.1%

Most of the distance between a forecast and a final score is luck: a hot goalie, a post or a deflection moves a hockey score more than anything known before the game. Made Mon, Oct 19, 4:25 pm ET and frozen at puck drop. How our predictions have done

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

Penguins win 27% of them, Mammoth 73%. The line is what actually happened: Mammoth by 1.

Show as a table
Final margin in the replaysShare of replays
Penguins by 3+5.4%
Penguins by 25.2%
Penguins by 116.8%
Mammoth by 117.5%
Mammoth by 211.7%
Mammoth by 3+43.5%

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 +0.8 goals to the Penguins: the final margin was Mammoth by 1, without the luck Mammoth by 1.8. Luck shares are the fitted ones (how much of each kind is luck).
ShootingUnblocked attemptsGoalsExpected goalsAbove expected
Penguins3142.26+1.74
Mammoth4553.76+1.24

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 19:41 Tripping on the Mammoth (Dylan Guenther): 2 minutes on the power play +4% PIT
P2 13:07 High sticking on the Mammoth (Clayton Keller): 2 minutes on the power play +4% PIT
P2 10:47 Hooking on the Penguins (Bryan Rust): 2 minutes on the power play +5% UTA
P3 19:33 Tripping on the Penguins (Blake Lizotte): 2 minutes on the power play +2% UTA

When it happened

Mammoth’ chance of winning

As low as 37% and as high as 100%. 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 Penguins were.
#WhenWhat happenedWin probability forNext drive
1 P1 18:49 Erik Karlsson scored on a slap shot from 52 feetShooting · 3% chance +15% PIT –
2 P1 14:00 Clayton Keller scored on a backhand shot from 12 feetShooting · 9% chance +15% UTA –
3 P1 9:50 Kevin Stenlund scored on a wrist shot from 7 feetShooting · 17% chance +14% UTA –
4 P2 12:59 Rickard Rakell scored on a wrist shot from 7 feetShooting · 22% chance +16% PIT –
5 P2 8:16 Nate Schmidt scored on a slap shot from 60 feetShooting · 2% chance +21% UTA –
6 P2 5:20 Kailer Yamamoto scored on a tip from 3 feetShooting · 33% chance +10% UTA –
7 P3 5:05 Declan Carlile scored on a wrist shot from 18 feetShooting · 11% chance +9% PIT –
8 P3 0:05 Ben Kindel’s wrist shot from 7 feet was savedShooting · 18% chance +9% UTA –

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

Penguins 16% · Mammoth 84%

Final margin
Mammoth by 1
Luck in goals
0.8 for the Penguins
Luck-adjusted margin
Mammoth by 1.8
Replay with same day's form
Penguins 27% · Mammoth 73% 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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