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

Bruins hold off the Capitals

The verdict · earned

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

WSH 1 · BOS 3
◆ By the ModelJul 12, 5:58 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 beat the Capitals 3-1 and controlled the game by every metric. But both goalies overperformed so dramatically that the underlying advantage (4.84–3.44 in expected goals) nearly looked competitive.

Boston dominated: 58% of expected goals, 57% of shot attempts (30–23 on goal), and 8–5 in high-danger chances. Elias Lindholm's snap shot from the point (19:36, P3) was the turning point—not because it was inevitable, but because so few other chances fell.

Both teams underperformed their opportunities. The Bruins missed 1.84 expected goals; the Capitals missed 2.44. J. Swayman (Boston) saved 2.4 above expected and was perfect on high-danger chances (100% SV on 5 shots). L. Thompson (Washington) saved 2.8, nearly keeping an outmatched roster in the game.

Washington went 0 for 5 on high-danger chances. That won't repeat. But Thompson's brilliance nearly made the expected-goal gap irrelevant until Boston's volume finally wore through.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Mar 7
WSH
1
BOS
3

Bruins hold off the Capitals

Chances 3.4 – 4.8Did they deserve it? →
Did they deserve it?

The Bruins earned this one.

Expected goals · chance value
WSH
3.44
BOS
4.84
42% of the chances58%

The board read WSH 1, BOS 3. The chances read WSH 3.4, BOS 4.8.

Our xG model · NHL play-by-play · all situations
Luck check
BOS
−1.8
goals above expected
BOS4.84 expected · 3 scored
Expected
Scored
WSH3.44 expected · 1 scored
Expected
Scored

The Capitals left 2.4 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. P2 04:07BOSP. ZachaPP0–1
  2. P2 07:21WSHA. Protas1–1
  3. P3 04:28BOSV. Arvidsson1–2
  4. P3 19:36BOSE. LindholmEN1–3
NHL play-by-play · chance value from our xG model
Where the shots came from
WSH
40 shots
1
Final
86 shots
BOS
46 shots
3
WSH attackBOS attack
WSH BOS Goal
40
shots · 1 in
46
shots · 3 in
Every unblocked shot · press play to replay it
Chances by danger
WSHBOS
0 / 5
1.54 xG
High danger
2 / 8
2.25 xG
1 / 12
1.30 xG
Medium
1 / 19
2.12 xG
0 / 37
0.61 xG
Low
0 / 39
0.47 xG

The Capitals went 0 for 5 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A+
L. Thompson
+2.8
WSH · 27/29
A
J. Swayman
+2.4
BOS · 22/23
The numbers, checked
BACKCHECK

Bruins hold off the Capitals

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 7–8no goals
    2ndshots 9–13
    1. 04:07BOSP. Zachapower play(C. McAvoy, D. Pastrnak)0–1
    2. 07:21WSHA. Protas(J. Chychrun, R. Leonard)1–1
    3rdshots 7–9
    1. 04:28BOSV. Arvidsson(C. Mittelstadt, H. Lindholm)1–2
    2. 19:36BOSE. Lindholmempty net(D. Pastrnak)1–3

    score reads WSH–BOS

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

    The numbers

    XGBoost xG · NHL play-by-play
    4.84
    BOS chances
    Goals their shots were worth
    −1.8
    Finishing
    Goals below what those chances were worth
    1.027
    BOS puck luck
    Above 1.000 — the bounces went their way
    55.0%
    Shot attempts
    Over half — they had the puck more
    Split by club

    Who controlled the game

    3.44Expected goals4.84
    BOS 58% of the chance quality
    23Shots on goal30
    5High-danger chances8
    54All attempts (Corsi)66
    Adjusted for score: WSH 46% · BOS 54%
    Faceoffs · BOS won50%off46%neu44%def
    Source · NHL play-by-play · XGBoost xG
    How the game was won

    The danger ladder

    shotsgoalsexpected
    High dangerslot & crease
    WSH0 / 5 · 1.54 xG
    BOS2 / 8 · 2.25 xG
    Medium dangermid-range
    WSH1 / 12 · 1.30 xG
    BOS1 / 19 · 2.12 xG
    Low dangerperimeter & point
    WSH0 / 37 · 0.61 xG
    BOS0 / 39 · 0.47 xG

    WSH went 0-for-5 from high danger on 1.54 expected goals — 1.5 left on the table.

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

    Finishing vs expected

    expectedactual
    WSH
    1 G · 3.44 xG · -2.4
    BOS
    3 G · 4.84 xG · -1.8
    0123456

    WSH finished -2.4 against expected, BOS -1.8.

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

    Shot diet

    goalsshots
    WSH
    SNAP0/28
    SLAP0/6
    BACKHAND0/2
    TIP IN1/2
    DEFLECTED0/1
    WRIST0/1
    BAT0/0
    OTHER0/14
    BOS
    SNAP2/29
    SLAP0/6
    BACKHAND0/4
    TIP IN0/3
    DEFLECTED0/1
    WRIST0/1
    BAT1/2
    OTHER0/20
    WSH
    BOS
    Off the rush
    0 G on 22
    2.31 xG
    1 G on 32
    3.10 xG
    Off rebounds
    1 G on 2
    0.13 xG
    1 G on 4
    0.77 xG

    Snap shots carried the volume: WSH went 0-for-28, BOS 2-for-29.

    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
    L. Thompson
    WSH · 27/29 · .931
    +2.8
    saved above expected
    A+
    the night
    By dangerG/attxGsaved
    High danger2/82.3+0.3
    Medium1/192.1+1.1
    Low0/390.5+0.5

    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. Swayman
    BOS · 22/23 · .957
    +2.4
    saved above expected
    A
    the night
    By dangerG/attxGsaved
    High danger0/51.5+1.5
    Medium1/121.3+0.3
    Low0/370.6+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

    86 shots · press play to watch the game back

    Where the shots came from

    NHL play-by-play coordinates
    WSH
    40 shots
    1
    Final
    86 shots
    BOS
    46 shots
    3
    WSH attackBOS attack
    WSH BOS Goal

    Each club shoots toward its own end — WSH left, BOS 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
    D. Pastrnak
    #88 · R · BOS
    0 G · 2 A · 6 SOG · 20:56 on ice · +1
    C. McAvoy
    #73 · D · BOS
    0 G · 1 A · 3 SOG · 25:52 on ice · +1
    J. Chychrun
    #6 · D · WSH
    0 G · 1 A · 5 SOG · 24:40 on ice · -1
    Ranked from the box score — points first · Backcheck
    What the model said beforehand

    Before the game

    Written Sat, Mar 7
    Open the pre-game read
    Written from the numbers

    The read

    Edited for clarity
    ◆ By the ModelJul 12, 5:55 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 model projects 2.6 goals for each side, with Boston at 50% win probability—as close to a pick'em as the numbers produce. This is genuinely uncertain.

    Washington owns the underlying play. The Capitals' 5v5 expected goal share sits at 50.0% to Boston's 47.0%, a marginal edge that suggests they should control play. Both teams' shot metrics align at 49.0% Corsi, but the quality spread—expected goals—is where Washington's advantage materializes.

    Both PDOs are inflated. Washington runs at 1.018, Boston at 1.023; both are running hotter than natural variance predicts. Regression is coming for one or both, a fact that dampens confidence in either team's recent results.

    Boston catches a rest advantage. The Bruins arrive on one day of rest against Washington's three, a commodity that shifts minor edges in the model. For a game this tight, pace and jump matter.

    Goaltending becomes consequential at pick-'em odds. J. Korpisalo is on a back-to-back; Boston may deploy a backup or risk a tired starter, either outcome introducing uncertainty that a full-strength matchup would not.

    Alex Ovechkin carries Washington's offensive load at 0.97 expected goals per 60 minutes, paired with 19 goals and 17 assists. His 2 high-danger chances and 13.8% shooting rate show a player both generating and converting chances above expectation. Anthony Beauvillier shadows him as Washington's secondary threat at 0.89 xG/60, with 14 goals, 9 assists, and a 10.4% shot conversion that warns Boston of sustained danger.

    Boston counters with Viktor Arvidsson leading in both volume and touch. At 1.04 xG/60, Arvidsson edges Ovechkin in chance creation and backs it with 18 goals and 24 assists; his 2 high-danger chances at 13.0% shooting fit a player in rhythm. Tanner Jeannot (0.75 xG/60, 6 goals, 14 assists) is a secondary contributor with 2 high-danger chances.

    Washington's defensive weak link is Declan Chisholm. Boston's is Elias Lindholm. In a game without a clear favorite, exposure in transition becomes decisive.

    This is a flip. Don't overthink it.

    What the model said beforehand

    The model's lean

    BOS 50%
    50%
    BOS
    Model favorite
    50%
    50%
    WSH50BOS

    BOS by 0 points of win probability — effectively a coin flip. Projected score WSH 2.6–2.6 BOS; 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
    WSH← edge
    edge →BOS
    50.0%47.0%
    49.0%49.0%
    2.622.39
    2.622.67
    2.182.22
    1.791.82
    1.0181.023

    WSH holds 4 of 6 process categories — and the luck row (1.018 vs 1.023) says BOS has been getting the bounces, which tends not to last.

    Source · NHL stats API + our xG · 5v5
    Form · Last 10
    WSH
    6-4-0
    -1 GD · 3d rest
    BOS
    5-2-3
    +0 GD · 1d rest
    1.018
    WSH PDO
    Luck gauge · drifts to 1.000
    1.023
    BOS PDO
    Luck gauge · drifts to 1.000
    What decides it

    Keys to the game

    Where the edges live
    • The Capitals own the underlying play — 50.0% 5v5 xG vs 47.0%.
    Regression watch
    • The Bruins' PDO is 1.023 — running hot, expect some regression.
    • The Capitals' PDO is 1.018 — running hot, expect some regression.
    Things to watch
    • The Capitals own the underlying play — 50.0% 5v5 xG vs 47.0%.
    • J. Korpisalo is on a back-to-back — watch for a backup start or a tired starter.
    • The Bruins' PDO is 1.023 — running hot, expect some regression.
    • The Capitals have 2 more days of rest.
    Last game's lineup · confirmed at warm-up

    Lineups

    NHL box score
    WSH
    Expected in goal
    L. Thompson
    3 days rest.870 last start
    Backup Logan Thompson · +29.3 GSAx this season

    No completed game on file for this club yet.

    BOS
    Expected in goal
    J. Korpisalo
    back-to-back.821 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.

    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
    WSH
    Alex Ovechkin19G 17A
    0.97 xG/60 · 2 HD · 13.8% sh
    Anthony Beauvillier14G 9A
    0.89 xG/60 · 2 HD · 10.4% sh
    BOS
    Viktor Arvidsson18G 24A
    1.04 xG/60 · 2 HD · 13.0% sh
    Tanner Jeannot6G 14A
    0.75 xG/60 · 2 HD · 8.3% sh
    Keep going

    Where to next