Motion-blurred skater in a Pittsburgh Penguins sweater
Breakdown · PIT at CGY

Penguins pull away from the Flames

The verdict · earned

The Penguins earned it — the game and the expected-goals battle both.

PIT 4 · CGY 1
◆ By the ModelJul 12, 2:00 AMxG: xgboost-0.758Edited for clarityDrafted from NHL play-by-play by Backcheck's model, worded for clarity by an AI editor that may not change a number. Nobody at Backcheck was at the rink. How this works

Pittsburgh's efficiency inflated the scoreline. The Penguins won 4–1, but expected goals told a tighter story: Pittsburgh dominated 5v5 play with 3.21 xG to Calgary's 2.52, a control margin the 4–1 result masked. The gap widened because the Flames wasted opportunities—underperforming their xG by 1.52 goals—while the Penguins overcapitalized by 0.79.

The divergence ran deeper. Calgary held just 43% of shot attempts (19–25 on goal) and ceded high-danger chances at a steep clip: 3 for the Flames, 6 for Pittsburgh. That disparity in positioning and shooting lanes gave S. Skinner an easier job on paper, but he still had to execute. A 0.947 save percentage—stopping 1.52 goals above expected—did more than execute; it took control of the game.

Pittsburgh's edge in shot quality proved decisive. The Penguins generated 0.059 xG per shot versus Calgary's 0.043, reflecting the quality of looks each team earned. Off the rush, Pittsburgh converted ruthlessly: four goals on 27 chances. Calgary crashed the net effectively, creating three rebound opportunities, but couldn't capitalize.

Tommy Novak's backhander from the doorstep at 9:19 of the third period widened the lead at a pivotal moment. The goal capped a performance where Pittsburgh's top-six did the heavy lifting—E. Malkin (1G, 1A) and T. Novak (1G, 1A) both notched multi-point efforts, while J. St. Ivany assisted twice in 16:55.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Jan 21
PIT
4
CGY
1

Penguins pull away from the Flames

Chances 3.2 – 2.5Did they deserve it? →
Did they deserve it?

The Penguins earned this one.

Expected goals · chance value
PIT
3.21
CGY
2.52
56% of the chances44%

The board read PIT 4, CGY 1. The chances read PIT 3.2, CGY 2.5.

Our xG model · NHL play-by-play · all situations
Luck check
PIT
+0.8
goals above expected
PIT3.21 expected · 4 scored
Expected
Scored
CGY2.52 expected · 1 scored
Expected
Scored

The Flames left 1.5 goals on the table against what their chances were worth.

PDO = sh% + sv% · drifts to 1.000 over a season
Every goal, in order
  1. P1 07:49PITE. Malkin1–0
  2. P2 12:32PITE. Chinakhov2–0
  3. P2 19:57CGYY. Sharangovich2–1
  4. P3 00:50PITB. Rust3–1
  5. P3 09:19PITT. Novak4–1
NHL play-by-play · chance value from our xG model
Where the shots came from
PIT
42 shots
4
Final
82 shots
CGY
40 shots
1
PIT attackCGY attack
PIT CGY Goal
42
shots · 4 in
40
shots · 1 in
Every unblocked shot · press play to replay it
Chances by danger
PITCGY
2 / 6
1.32 xG
High danger
0 / 3
0.68 xG
1 / 14
1.30 xG
Medium
1 / 12
1.20 xG
1 / 34
0.59 xG
Low
0 / 44
0.64 xG

The Flames went 0 for 3 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A
S. Skinner
+1.5
PIT · 18/19
D-
D. Wolf
−0.8
CGY · 21/25
The numbers, checked
BACKCHECK

Penguins pull away from the Flames

A model, not a newsroom. Every number on these frames comes from the NHL's play-by-play and our own models. Nothing was watched, guessed or heard from anyone.

Read the full breakdown
backcheckreport.com
01 / 08 · Final
Every goal, in order

How it happened

NHL play-by-play
1stshots 11–5
  1. 07:49PITE. Malkin(R. Shea, J. St. Ivany)1–0
2ndshots 8–9
  1. 12:32PITE. Chinakhov(T. Novak, E. Malkin)2–0
  2. 19:57CGYY. Sharangovich(Z. Whitecloud, K. Bahl)2–1
3rdshots 6–5
  1. 00:50PITB. Rust(S. Crosby, R. Rakell)3–1
  2. 09:19PITT. Novak(J. St. Ivany)4–1

score reads PIT–CGY

Source · NHL play-by-play (api-web.nhle.com)
Process vs result

The numbers

XGBoost xG · NHL play-by-play
3.21
PIT chances
Goals their shots were worth
+0.8
Finishing
Goals above what those chances were worth
1.057
PIT puck luck
Above 1.000 — the bounces went their way
47.8%
Shot attempts
Under half — they were outshot
Split by club

Who controlled the game

3.21Expected goals2.52
PIT 56% of the chance quality
25Shots on goal19
6High-danger chances3
54All attempts (Corsi)59
Adjusted for score: PIT 43% · CGY 57%
Faceoffs · CGY won56%off47%neu65%def
Source · NHL play-by-play · XGBoost xG
How the game was won

The danger ladder

shotsgoalsexpected
High dangerslot & crease
PIT2 / 6 · 1.32 xG
CGY0 / 3 · 0.68 xG
Medium dangermid-range
PIT1 / 14 · 1.30 xG
CGY1 / 12 · 1.20 xG
Low dangerperimeter & point
PIT1 / 34 · 0.59 xG
CGY0 / 44 · 0.64 xG

CGY went 0-for-3 from high danger on 0.68 expected goals — 0.7 left on the table.

Source · Backcheck xG model · NHL play-by-play
The luck layer

Finishing vs expected

expectedactual
PIT
4 G · 3.21 xG · +0.8
CGY
1 G · 2.52 xG · -1.5
012345

PIT finished +0.8 against expected, CGY -1.5.

Source · Backcheck xG model
Shot types · rush and rebound chancesopen +
What they shot — and what went in

Shot diet

goalsshots
PIT
WRIST0/19
SNAP1/7
SLAP0/5
TIP IN1/6
BACKHAND1/4
WRAP AROUND1/1
DEFLECTED0/0
OTHER0/12
CGY
WRIST0/21
SNAP0/6
SLAP0/6
TIP IN1/4
BACKHAND0/2
WRAP AROUND0/0
DEFLECTED0/1
OTHER0/19
PIT
CGY
Off the rush
4 G on 27
2.15 xG
1 G on 22
1.79 xG
Off rebounds
0 G on 2
0.08 xG
0 G on 3
0.31 xG

Wrist shots carried the volume: PIT went 0-for-19, CGY 0-for-21. PIT scored 4 of theirs off the rush.

Source · Backcheck xG model · NHL shot types
New to these numbers?

Two things happened in this game: who created the better chances, and who put the puck in the net. They are not the same thing, and this page separates them on purpose.

The one to watch is expected goals— the best single read on who deserved to win. When it disagrees with the scoreboard, that disagreement is usually the story. Nothing here is a projection; every figure is computed from this game's play-by-play. Full glossary →

xG
Expected goals. Every shot scored by how often that exact look goes in. 2.5 xG means the chances were worth about two and a half goals.
HD
High-danger chances — shots from the slot and the crease, where shots actually become goals.
Corsi
Every shot attempt, including the ones that missed or got blocked. A rough read on who had the puck.
Adj.
Score-adjusted. Teams that trail shoot more and teams that lead sit back, so this corrects the attempt count for the scoreboard.
GSAx
Goals saved above expected. A positive number means the goalie stopped more than an average goalie would have on those shots.
PDO
Shooting % plus save % — a luck gauge. It sits near 1.000 over a season, so a game far from it usually means the bounces decided it.
Shot by shot

In the net

Graded on goals saved above expected
S. Skinner
PIT · 18/19 · .947
+1.5
saved above expected
A
the night
By dangerG/attxGsaved
High danger0/30.7+0.7
Medium1/121.2+0.2
Low0/440.6+0.6

A+ ≥ +2.5 saved above expected · A ≥ +1.5 · B+ ≥ +0.75 · B ≥ +0.25 · C ≥ −0.25 · D ≥ −0.75 · F below −1.5

D. Wolf
CGY · 21/25 · .840
-0.8
saved above expected
D-
the night
By dangerG/attxGsaved
High danger2/61.3-0.7
Medium1/141.3+0.3
Low1/340.6-0.4

A+ ≥ +2.5 saved above expected · A ≥ +1.5 · B+ ≥ +0.75 · B ≥ +0.25 · C ≥ −0.25 · D ≥ −0.75 · F below −1.5

82 shots · press play to watch the game back

Where the shots came from

NHL play-by-play coordinates
PIT
42 shots
4
Final
82 shots
CGY
40 shots
1
PIT attackCGY attack
PIT CGY Goal

Each club shoots toward its own end — PIT left, CGY right — the way you would watch it. A dot's size is how dangerous the look was, from distance and angle; it is a proxy for shot quality, not the xG model the article is written from. Hover a dot for the shooter and the clock.

Ranked from the box score

Three stars

Points first
Three stars · computed, not voted
J. St. Ivany
#3 · D · PIT
0 G · 2 A · 1 SOG · 16:55 on ice · +2
E. Malkin
#71 · C · PIT
1 G · 1 A · 3 SOG · 15:26 on ice · +3
T. Novak
#18 · C · PIT
1 G · 1 A · 2 SOG · 14:13 on ice · +3
Ranked from the box score — points first · Backcheck
What the model said beforehand

Before the game

Written Wed, Jan 21
Open the pre-game read
Written from the numbers

The read

Edited for clarity
◆ By the ModelJul 12, 1:58 AMEdited for clarityDrafted from NHL play-by-play by Backcheck's model, worded for clarity by an AI editor that may not change a number. Nobody at Backcheck was at the rink. How this works

The models project a 2.7–2.6 Pittsburgh win, with the Penguins at 52% win probability—as close to a pick'em as you'll find.

Pittsburgh has form on its side. The Penguins are 6-2-2 in their last 10, while Calgary sits at minus-5 goal differential over the same stretch. Underlying play extends that advantage: Pittsburgh owns 51.0% expected goals at 5-on-5 to Calgary's 47.0%, with a 50.0% Corsi edge against the Flames' 49.0%.

Calgary's PDO of 0.985 signals a team running cold and due for positive regression. Pittsburgh sits at 1.012. Goaltender D. Cooley enters on a back-to-back; watch for a backup start or a tired starter in the Calgary net.

Three Stars

  • Rickard Rakell (PIT) — 1.01 xG/60 with 13 goals, 13 assists, and three high-danger goals. At 12.1% shooting, he's a conversion threat.
  • Blake Coleman (CGY) — 0.89 xG/60 with 16 goals and 12 assists, including two high-danger goals. Calgary's best bet for capitalizing on any openings.
  • Matt Coronato (CGY) — 0.80 xG/60 with 10 goals and 16 assists. At 6.6% shooting, his conversion remains below expectation.

Hallander, posting 1.28 xG/60 but just 3 assists and no goals, is likely out on IR pending further evaluation. Defenseman Caleb Jones is Pittsburgh's weak link in transition; Matt Coronato fills that role for Calgary. Both teams generate 0% high-danger and 0% rebound goals, a constraint that makes primary-chance execution decisive.

At pick'em odds, lean Pittsburgh's form and edge in expected play. But this is as neutral a game as the regular season offers.

What the model said beforehand

The model's lean

PIT 52%
52%
PIT
Model favorite
52%
48%
PIT50CGY

PIT by 4 points of win probability — effectively a coin flip. Projected score PIT 2.7–2.6 CGY; 18% chance it's tied after 60.

Source · Backcheck Poisson projection · season scoring rates
Season rates · 5v5

Tale of the tape

NHL stats API · our xG
PIT← edge
edge →CGY
51.0%47.0%
50.0%49.0%
2.662.36
2.552.66
2.451.76
2.122.15
1.0120.985

PIT holds 6 of 6 process categories — and the luck row (1.012 vs 0.985) says PIT has been getting the bounces, which tends not to last.

Source · NHL stats API + our xG · 5v5
Form · Last 10
PIT
6-2-2
+10 GD · 2d rest
CGY
4-5-1
-5 GD · 1d rest
1.012
PIT PDO
Luck gauge · drifts to 1.000
0.985
CGY PDO
Luck gauge · drifts to 1.000
What decides it

Keys to the game

Where the edges live
  • The Penguins own the underlying play — 51.0% 5v5 xG vs 47.0%.
Regression watch
  • The Flames' PDO is 0.985 — running cold, due for positive regression.
Things to watch
  • The Penguins own the underlying play — 51.0% 5v5 xG vs 47.0%.
  • D. Cooley is on a back-to-back — watch for a backup start or a tired starter.
  • The Penguins are the hotter team by points pace (6-2-2 in their last 10).
  • The Flames are underwater at -5 goal differential over their last 10.
  • The Flames' PDO is 0.985 — running cold, due for positive regression.
Last game's lineup · confirmed at warm-up

Lineups

NHL box score
PIT
Expected in goal
S. Skinner
2 days rest.870 last start
Backup Stuart Skinner · +8.3 GSAx this season

No completed game on file for this club yet.

CGY
Expected in goal
D. Cooley
back-to-back.938 last start
Backup Dustin Wolf · -1.8 GSAx this season
Back-to-back: the backup often gets this one. Treat the starter as unconfirmed.

No completed game on file for this club yet.

Lineups are the players who dressed in each club's last game, with their minutes; clubs confirm tonight's at warm-up. Every player this preview names was in that lineup.

Computed danger · scouting

Players to watch

NHL stats API · our xG
PIT
Filip Hallander0G 3A
1.28 xG/60 · 0 HD · 0.0% sh
Rickard Rakell13G 13A
1.01 xG/60 · 3 HD · 12.1% sh
CGY
Blake Coleman16G 12A
0.89 xG/60 · 2 HD · 11.4% sh
Matt Coronato10G 16A
0.80 xG/60 · 0 HD · 6.6% sh
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