Motion-blurred skater in a gold and black sweater
Breakdown · BOS at CBJ

Bruins hold off the Blue Jackets

The verdict · stolen

The Bruins stole one. They lost the expected-goals battle 3.62–4.13 and won anyway.

BOS 3 · CBJ 2
◆ By the ModelJul 12, 11:25 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

The Bruins won 3–2, but the Blue Jackets' underlying numbers told a different story. Columbus generated 4.13 expected goals against Boston's 3.62, held 61% of shot attempts, and still lost. The culprit: a catastrophic underperformance on their scoring chances. The Blue Jackets underperformed their xG by 2.13 goals—a chasm that doesn't close often.

Quality mattered more than volume. Boston squeezed 0.081 xG per shot compared to Columbus's 0.061, meaning the Bruins generated more dangerous looks despite being outshot. That edge materialized in net. J. Korpisalo (BOS) stopped 2.13 goals above expected, while J. Greaves (CBJ) was merely 0.62 above.

The Blue Jackets couldn't convert when it mattered. They went 0–5 on high-danger chances and were equally inefficient on the rush—2 goals on 36 chances. Boston, meanwhile, went 0–7 on high-danger opportunities, suggesting neither team was efficient in the dirty areas. But Boston was lethal enough on the rush: 2 goals on 26 chances.

Mark Kastelic's snap shot from a sharp angle (P3, 10:22) was the pivot. It gave Boston breathing room late and, given Columbus's wasteful performance, enough cushion to hold on.

The turning point wasn't dominance. It was Columbus doing everything right on paper and nothing right in execution—a reminder that possession and volume tell incomplete stories in hockey.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Apr 12
BOS
3
CBJ
2

Bruins hold off the Blue Jackets

Chances 3.6 – 4.1Did they deserve it? →
Did they deserve it?

The Blue Jackets deserved better.

Expected goals · chance value
BOS
3.62
CBJ
4.13
47% of the chances53%

The board read BOS 3, CBJ 2. The chances read BOS 3.6, CBJ 4.1.

Our xG model · NHL play-by-play · all situations
Luck check
BOS
−0.6
goals above expected
BOS3.62 expected · 3 scored
Expected
Scored
CBJ4.13 expected · 2 scored
Expected
Scored

The Blue Jackets left 2.1 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 03:59CBJM. Marchment0–1
  2. P1 10:31BOSS. Kuraly1–1
  3. P2 19:41BOSH. Jokiharju2–1
  4. P3 01:27CBJA. Fantilli2–2
  5. P3 10:22BOSM. Kastelic3–2
NHL play-by-play · chance value from our xG model
Where the shots came from
BOS
39 shots
3
Final
94 shots
CBJ
55 shots
2
BOS attackCBJ attack
BOS CBJ Goal
39
shots · 3 in
55
shots · 2 in
Every unblocked shot · press play to replay it
Chances by danger
BOSCBJ
0 / 7
1.73 xG
High danger
0 / 5
1.34 xG
2 / 15
1.52 xG
Medium
2 / 21
2.05 xG
1 / 23
0.37 xG
Low
0 / 42
0.75 xG

The Blue Jackets went 0 for 5 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A
J. Korpisalo
+2.1
BOS · 33/35
B
J. Greaves
+0.6
CBJ · 19/22
The numbers, checked
BACKCHECK

Bruins hold off the Blue Jackets

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 3–14
  1. 03:59CBJM. Marchment(D. Fabbro, B. Jenner)0–1
  2. 10:31BOSS. Kuraly(M. Kastelic, H. Jokiharju)1–1
2ndshots 11–11
  1. 19:41BOSH. Jokiharju(S. Kuraly, J. Hagens)2–1
3rdshots 8–10
  1. 01:27CBJA. Fantilli(D. Heinen)2–2
  2. 10:22BOSM. Kastelic(S. Kuraly, J. Harris)3–2

score reads BOS–CBJ

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

The numbers

XGBoost xG · NHL play-by-play
3.62
BOS chances
Goals their shots were worth
−0.6
Finishing
Goals below what those chances were worth
1.037
BOS puck luck
Above 1.000 — the bounces went their way
39.8%
Shot attempts
Under half — they were outshot
Split by club

Who controlled the game

3.62Expected goals4.13
CBJ 53% of the chance quality
22Shots on goal35
7High-danger chances5
45All attempts (Corsi)68
Adjusted for score: BOS 39% · CBJ 61%
Faceoffs · CBJ won71%off44%neu50%def
Source · NHL play-by-play · XGBoost xG
How the game was won

The danger ladder

shotsgoalsexpected
High dangerslot & crease
BOS0 / 7 · 1.73 xG
CBJ0 / 5 · 1.34 xG
Medium dangermid-range
BOS2 / 15 · 1.52 xG
CBJ2 / 21 · 2.05 xG
Low dangerperimeter & point
BOS1 / 23 · 0.37 xG
CBJ0 / 42 · 0.75 xG

BOS went 0-for-7 from high danger on 1.73 expected goals — 1.7 left on the table.

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

Finishing vs expected

expectedactual
BOS
3 G · 3.62 xG · -0.6
CBJ
2 G · 4.13 xG · -2.1
012345

BOS finished -0.6 against expected, CBJ -2.1.

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

Shot diet

goalsshots
BOS
WRIST1/19
SNAP1/9
TIP IN0/6
SLAP0/1
BACKHAND0/3
DEFLECTED1/1
OTHER0/6
CBJ
WRIST0/22
SNAP1/16
TIP IN1/6
SLAP0/8
BACKHAND0/2
DEFLECTED0/1
OTHER0/13
BOS
CBJ
Off the rush
2 G on 26
2.57 xG
2 G on 36
3.15 xG
Off rebounds
0 G on 3
0.62 xG
0 G on 4
0.47 xG

Wrist shots carried the volume: BOS went 1-for-19, CBJ 0-for-22. BOS scored 2 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
J. Korpisalo
BOS · 33/35 · .943
+2.1
saved above expected
A
the night
By dangerG/attxGsaved
High danger0/51.3+1.3
Medium2/212.0+0.1
Low0/420.8+0.8

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

J. Greaves
CBJ · 19/22 · .864
+0.6
saved above expected
B
the night
By dangerG/attxGsaved
High danger0/71.7+1.7
Medium2/151.5-0.5
Low1/230.4-0.6

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

94 shots · press play to watch the game back

Where the shots came from

NHL play-by-play coordinates
BOS
39 shots
3
Final
94 shots
CBJ
55 shots
2
BOS attackCBJ attack
BOS CBJ Goal

Each club shoots toward its own end — BOS left, CBJ 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
S. Kuraly
#52 · C · BOS
1 G · 2 A · 2 SOG · 14:54 on ice · +3
H. Jokiharju
#20 · D · BOS
1 G · 1 A · 2 SOG · 19:57 on ice
M. Kastelic
#47 · C · BOS
1 G · 1 A · 2 SOG · 15:12 on ice · +3
Ranked from the box score — points first · Backcheck
What the model said beforehand

Before the game

Written Sun, Apr 12
Open the pre-game read
Written from the numbers

The read

Edited for clarity
◆ By the ModelJun 16, 1:17 PMEdited 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 model projects a BOS 2.4 - 2.8 CBJ game with CBJ at 56% win probability. Columbus dominates the underlying play — 52.0% xG, 51.0% Corsi% — but Boston's 1.023 PDO is running hot and regression is coming.

Columbus sits -11 in goal differential over the last 10, a warning that possession doesn't always translate. Yet its 52.0% xG% is real. Boston's defensive weak link is Elias Lindholm; Columbus's is Conor Garland. Mathieu Olivier is week-to-week with an upper-body injury.

The goaltending picture cuts both ways. J. Greaves and J. Swayman are both on back-to-backs, creating fatigue risk on both ends. Either could start a backup.

Boston's offensive burden falls to Viktor Arvidsson at 1.04 xG/60 with 18 goals and a 13.0% shooting rate. Mark Kastelic offers depth at 0.89 xG/60 and 10 goals. For Columbus, Boone Jenner is the engine at 0.98 xG/60 with 11 goals, playing at a 9.6% conversion clip. The gap between his efficiency and Arvidsson's is the game.

Boston's PDO anomaly — 1.023 — makes regression the underlying story. The Bruins are running hot; the Blue Jackets are playing better.

Three Things to Watch

  • Columbus's 52.0% xG advantage is durable and the model's edge.
  • J. Greaves is on a back-to-back; watch for a backup or tired starter.
  • J. Swayman is on a back-to-back; watch for a tired starter.
What the model said beforehand

The model's lean

CBJ 56%
56%
CBJ
Model favorite
44%
56%
BOS50CBJ

CBJ by 12 points of win probability — a modest lean. Projected score BOS 2.4–2.8 CBJ; 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
BOS← edge
edge →CBJ
47.0%52.0%
49.0%51.0%
2.392.63
2.672.43
2.222.12
1.821.98
1.0231.003

CBJ holds 4 of 6 process categories — and the luck row (1.023 vs 1.003) says BOS has been getting the bounces, which tends not to last.

Source · NHL stats API + our xG · 5v5
Form · Last 10
BOS
4-4-2
+0 GD · 1d rest
CBJ
3-6-1
-11 GD · 1d rest
1.023
BOS PDO
Luck gauge · drifts to 1.000
1.003
CBJ PDO
Luck gauge · drifts to 1.000
What decides it

Keys to the game

Where the edges live
  • CBJ owns the underlying play — 52.0% 5v5 xG vs 47.0%.
Regression watch
  • BOS PDO is 1.023 — running hot, expect some regression.
Things to watch
  • CBJ owns the underlying play — 52.0% 5v5 xG vs 47.0%.
  • J. Greaves is on a back-to-back — watch for a backup start or a tired starter.
  • J. Swayman is on a back-to-back — watch for a backup start or a tired starter.
  • CBJ is underwater at -11 goal differential over the last 10.
  • BOS PDO is 1.023 — running hot, expect some regression.
Last game's lineup · confirmed at warm-up

Lineups

NHL box score
BOS
Expected in goal
J. Swayman
back-to-back.917 last start
Backup Jeremy Swayman · +28.8 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.

CBJ
Expected in goal
J. Greaves
back-to-back.909 last start
Backup Jet Greaves · +16.5 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
BOS
Viktor Arvidsson18G 24A
1.04 xG/60 · 2 HD · 13.0% sh
Mark Kastelic10G 7A
0.89 xG/60 · 3 HD · 12.0% sh
CBJ
Boone Jenner11G 21A
0.98 xG/60 · 2 HD · 9.6% sh
Mathieu Olivier12G 9A
0.89 xG/60 · 1 HD · 13.3% sh
Keep going

Where to next