Motion-blurred skater in a red sweater
Breakdown · CHI at TBL

Blackhawks hold off the Lightning

The verdict · stolen

The Blackhawks stole one. They lost the expected-goals battle 3.12–3.94 and won anyway.

CHI 3 · TBL 2
◆ By the ModelJul 11, 12:46 PMxG: 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 Blackhawks won a heist. They beat Tampa Bay 3–2 while losing the expected-goal battle 3.94–3.12, a chasm that suggests S. Knight made the difference.

Chicago won despite getting outshot in quality: the Lightning owned 56% of xG at 5v5 and controlled 55% of shot attempts (31–25 on goal). That should add up to a Tampa Bay win. It didn't, because Knight stopped 1.94 goals above his expected save percentage—his 0.935 mark turned a probable loss into a victory.

The Lightning could not capitalize. On seven high-danger chances, they converted zero. On six rebound opportunities, they scored once. A. Vasilevskiy saved 22 of 25, but his 0.880 SV% left Tampa one goal short of what the underlying play deserved. The Lightning underperformed their xG by 1.9 goals—a rarity that punishes teams even when they dominate.

Chicago didn't dominate, but they converted. Two rush-play goals on 27 chances proved decisive. The turning point arrived when Ryan Donato fired from the high slot late in the second period, the moment this game's odds swung toward Chicago. That's what elite goaltending does: steals games that the scoreboard said should go the other way.

The story isn't that Chicago deserved to win. It's that despite losing the underlying battle—the shots, the chances, the possession of danger—they found the net and walked out with two points. That's what a 0.935 save percentage buys: not artistry, not excellence, but the margins where games are stolen.


Data: NHL API, MoneyPuck xG model

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Oct 23
CHI
3
TBL
2

Blackhawks hold off the Lightning

Chances 3.1 – 3.9Did they deserve it? →
Did they deserve it?

The Lightning deserved better.

Expected goals · chance value
CHI
3.12
TBL
3.94
44% of the chances56%

The board read CHI 3, TBL 2. The chances read CHI 3.1, TBL 3.9.

Our xG model · NHL play-by-play · all situations
Luck check
CHI
−0.1
goals above expected
CHI3.12 expected · 3 scored
Expected
Scored
TBL3.94 expected · 2 scored
Expected
Scored

The Lightning left 1.9 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 10:41CHIF. NazarPP1–0
  2. P2 06:57TBLJ. Guentzel1–1
  3. P2 10:16CHIR. Donato2–1
  4. P2 19:18TBLR. McDonagh2–2
  5. P3 19:06CHIR. Donato3–2
NHL play-by-play · chance value from our xG model
Where the shots came from
CHI
41 shots
3
Final
95 shots
TBL
54 shots
2
CHI attackTBL attack
CHI TBL Goal
41
shots · 3 in
54
shots · 2 in
Every unblocked shot · press play to replay it
Chances by danger
CHITBL
0 / 5
1.19 xG
High danger
0 / 7
1.59 xG
2 / 9
1.08 xG
Medium
2 / 15
1.54 xG
1 / 34
0.85 xG
Low
0 / 51
0.81 xG

The Lightning went 0 for 7 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A
S. Knight
+1.9
CHI · 29/31
C
A. Vasilevskiy
+0.1
TBL · 22/25
The numbers, checked
BACKCHECK

Blackhawks hold off the Lightning

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 7–11
  1. 10:41CHIF. Nazarpower play(T. Bertuzzi, T. Teravainen)1–0
2ndshots 6–11
  1. 06:57TBLJ. Guentzel(R. McDonagh, N. Kucherov)1–1
  2. 10:16CHIR. Donato(L. Reichel)2–1
  3. 19:18TBLR. McDonagh(N. Kucherov, B. Point)2–2
3rdshots 12–9
  1. 19:06CHIR. Donato(F. Nazar, T. Teravainen)3–2

score reads CHI–TBL

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

The numbers

XGBoost xG · NHL play-by-play
3.12
CHI chances
Goals their shots were worth
−0.1
Finishing
Goals below what those chances were worth
1.035
CHI puck luck
Above 1.000 — the bounces went their way
39.7%
Shot attempts
Under half — they were outshot
Split by club

Who controlled the game

3.12Expected goals3.94
TBL 56% of the chance quality
25Shots on goal31
5High-danger chances7
48All attempts (Corsi)73
Adjusted for score: CHI 38% · TBL 62%
Faceoffs · TBL won76%off47%neu54%def
Source · NHL play-by-play · XGBoost xG
How the game was won

The danger ladder

shotsgoalsexpected
High dangerslot & crease
CHI0 / 5 · 1.19 xG
TBL0 / 7 · 1.59 xG
Medium dangermid-range
CHI2 / 9 · 1.08 xG
TBL2 / 15 · 1.54 xG
Low dangerperimeter & point
CHI1 / 34 · 0.85 xG
TBL0 / 51 · 0.81 xG

TBL went 0-for-7 from high danger on 1.59 expected goals — 1.6 left on the table.

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

Finishing vs expected

expectedactual
CHI
3 G · 3.12 xG · -0.1
TBL
2 G · 3.94 xG · -1.9
012345

CHI finished -0.1 against expected, TBL -1.9.

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

Shot diet

goalsshots
CHI
WRIST1/24
SNAP2/4
SLAP0/6
TIP IN0/5
BACKHAND0/2
WRAP AROUND0/0
DEFLECTED0/0
OTHER0/7
TBL
WRIST0/24
SNAP1/14
SLAP0/8
TIP IN1/3
BACKHAND0/3
WRAP AROUND0/1
DEFLECTED0/1
OTHER0/19
CHI
TBL
Off the rush
2 G on 27
2.01 xG
1 G on 30
2.33 xG
Off rebounds
1 G on 3
0.42 xG
1 G on 6
1.10 xG

Wrist shots carried the volume: CHI went 1-for-24, TBL 0-for-24. CHI 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
S. Knight
CHI · 29/31 · .935
+1.9
saved above expected
A
the night
By dangerG/attxGsaved
High danger0/71.6+1.6
Medium2/151.5-0.5
Low0/510.8+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

A. Vasilevskiy
TBL · 22/25 · .880
+0.1
saved above expected
C
the night
By dangerG/attxGsaved
High danger0/51.2+1.2
Medium2/91.1-0.9
Low1/340.8-0.1

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

95 shots · press play to watch the game back

Where the shots came from

NHL play-by-play coordinates
CHI
41 shots
3
Final
95 shots
TBL
54 shots
2
CHI attackTBL attack
CHI TBL Goal

Each club shoots toward its own end — CHI left, TBL 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
R. McDonagh
#27 · D · TBL
1 G · 1 A · 2 SOG · 23:10 on ice · +1
N. Kucherov
#86 · R · TBL
0 G · 2 A · 3 SOG · 22:44 on ice
F. Nazar
#91 · C · CHI
1 G · 1 A · 4 SOG · 21:33 on ice · +1
Ranked from the box score — points first · Backcheck
What the model said beforehand

Before the game

Written Thu, Oct 23
Open the pre-game read
Written from the numbers

The read

Edited for clarity
◆ By the ModelJul 11, 1:37 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

Tampa Bay enters this matchup as heavy favorites. The model projects a 2.2 to 3.0 goal margin favoring the Lightning, who sit at a 62% win probability. That's a substantial edge, and the underlying numbers explain why: the Lightning dominate at 5v5, controlling 54.0% of expected goals while Chicago musters just 42.0%. Territorial advantage runs deeper—Tampa's Corsi rate of 53.0% to Chicago's 46.0% suggests the Blackhawks will spend the evening defending their zone.

One caveat tempers the confidence. The Lightning are running a 1.019 PDO, which means they're converting at rates that don't sustain. A recent stretch underscores the fragility: they're at negative-five goal differential over their last ten games. PDO regression should clip their scoring line over time. Chicago's 0.996 sits closer to equilibrium, meaning luck flows both directions equally, but the Blackhawks' underlying play can't compensate for the skill gap.

Tampa leans on Brandon Hagel and Anthony Cirelli to drive their advantage. Hagel's 1.10 expected goals per 60 minutes ranks among the league's lethal weapons, backed by 23 goals and 26 assists. Cirelli operates at 0.95 xG/60 with 15 goals and 18 assists, providing secondary scoring punch. The pairing generates relentless pressure.

Chicago counters with Tyler Bertuzzi and Connor Bedard, though neither carries the offensive charge needed to flip the script. Bertuzzi's 0.85 xG/60 accompanies 20 goals and 15 assists—solid in isolation but insufficient against Tampa's top-tier volume. Bedard operates at 0.82 xG/60, generating 17 goals and 27 assists. His 11.8% shooting rate suggests cold luck that regression should normalize, though that doesn't reverse the structural mismatch in this game.

Tampa's territorial stranglehold and superior underlying numbers make them the logical play. The Lightning should command the pace and restrict Chicago's opportunities. Betting on the Lightning assumes their PDO excess won't crater in this specific game—a reasonable short-term assumption, even if the broader trend points toward correction. The model aligns: at 62% win probability and a projected 2.2-goal advantage, the favorite should prevail.

What the model said beforehand

The model's lean

TBL 62%
62%
TBL
Model favorite
38%
62%
CHI50TBL

TBL by 24 points of win probability — a clear lean. Projected score CHI 2.2–3.0 TBL; 17% 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
CHI← edge
edge →TBL
42.0%54.0%
46.0%53.0%
2.172.67
2.942.28
1.842.38
2.411.85
0.9961.019

TBL holds 6 of 6 process categories — and the luck row (0.996 vs 1.019) says TBL has been getting the bounces, which tends not to last.

Source · NHL stats API + our xG · 5v5
Form · Last 10
CHI
3-5-2
-3 GD · 4d rest
TBL
4-4-2
-5 GD · 5d rest
0.996
CHI PDO
Luck gauge · drifts to 1.000
1.019
TBL PDO
Luck gauge · drifts to 1.000
What decides it

Keys to the game

Where the edges live
  • The Lightning own the underlying play — 54.0% 5v5 xG vs 42.0%.
  • The Lightning drive Corsi at 53.0% — expect territorial tilt.
Regression watch
  • The Lightning's PDO is 1.019 — running hot, expect some regression.
Things to watch
  • The Lightning own the underlying play — 54.0% 5v5 xG vs 42.0%.
  • The Lightning drive Corsi at 53.0% — expect territorial tilt.
  • The Lightning are underwater at -5 goal differential over their last 10.
  • The Lightning's PDO is 1.019 — running hot, expect some regression.
Last game's lineup · confirmed at warm-up

Lineups

NHL box score
CHI
Expected in goal
S. Knight
4 days rest.974 last start
Backup Spencer Knight · +10.9 GSAx this season

No completed game on file for this club yet.

TBL
Expected in goal
J. Johansson
5 days rest.903 last start
Backup Andrei Vasilevskiy · +24.7 GSAx this season

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
CHI
Tyler Bertuzzi20G 15A
0.85 xG/60 · 7 HD · 18.0% sh
Connor Bedard17G 27A
0.82 xG/60 · 5 HD · 11.8% sh
TBL
Brandon Hagel23G 26A
1.10 xG/60 · 2 HD · 15.8% sh
Anthony Cirelli15G 18A
0.95 xG/60 · 5 HD · 17.0% sh
Keep going

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