Motion-blurred skater in a Tampa Bay Lightning sweater
Breakdown · STL at TBL

Lightning pull away from the Blues

The verdict · coin flip

The Lightning won a genuine coin flip — neither side controlled the run of play.

STL 1 · TBL 4
◆ By the ModelJul 11, 9:32 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 expected goals said this was close—a 3.21–2.96 split favored Tampa Bay by less than a goal. The scoreboard told a different story: 4–1. A. Vasilevskiy made the difference. He posted a 0.958 SV% (23/24 saves) and finished 1.96 goals above expected, suffocating the Blues' high-danger looks by posting a perfect 6-for-6 save rate on the six most dangerous chances.

St. Louis generated quality through selective pressure, creating looks the shot count (24 to 17) did not reflect. The high-danger chance split (6–4 in the Lightning's favor) understated neither team's threat, yet J. Binnington's execution faltered. He finished 0.79 goals below expected on 17 shots, allowing the Lightning to convert at a rate the underlying numbers suggested should've stayed tighter.

The Lightning broke away through efficiency. They scored 4 goals on 20 rush attempts. The power play added margin with 2 goals on 10 shots. When elite goaltending aligns with efficient seizing of chances, close xG becomes a decisive scoreline.

The Lightning held 42% of shot attempts—a possession disadvantage rendered academic by Vasilevskiy's performance. One team capitalized on chances while its goalie exceeded expectations; the other underperformed both metrics.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Dec 22
STL
1
TBL
4

Lightning pull away from the Blues

Chances 3.0 – 3.2Did they deserve it? →
Did they deserve it?

Dead even on chances. The Lightning took it anyway.

Expected goals · chance value
STL
2.96
TBL
3.21
48% of the chances52%

The board read STL 1, TBL 4. The chances read STL 3.0, TBL 3.2.

Our xG model · NHL play-by-play · all situations
Luck check
TBL
+0.8
goals above expected
TBL3.21 expected · 4 scored
Expected
Scored
STL2.96 expected · 1 scored
Expected
Scored

The Blues left 2.0 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 00:21TBLP. Holmberg0–1
  2. P1 09:12TBLD. RaddyshPP0–2
  3. P2 06:43STLJ. Faulk1–2
  4. P2 08:01TBLA. Cirelli1–3
  5. P3 05:36TBLO. BjorkstrandPP1–4
NHL play-by-play · chance value from our xG model
Where the shots came from
STL
35 shots
1
Final
66 shots
TBL
31 shots
4
STL attackTBL attack
STL TBL Goal
35
shots · 1 in
31
shots · 4 in
Every unblocked shot · press play to replay it
Chances by danger
STLTBL
0 / 4
0.88 xG
High danger
0 / 6
1.50 xG
0 / 13
1.56 xG
Medium
3 / 12
1.30 xG
1 / 34
0.52 xG
Low
1 / 30
0.40 xG

The Blues went 0 for 4 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A
A. Vasilevskiy
+2.0
TBL · 23/24
D-
J. Binnington
−0.8
STL · 13/17
The numbers, checked
BACKCHECK

Lightning pull away from the Blues

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 5–6
  1. 00:21TBLP. Holmberg(D. Raddysh, Z. Girgensons)0–1
  2. 09:12TBLD. Raddyshpower play(N. Kucherov, J. Guentzel)0–2
2ndshots 11–7
  1. 06:43STLJ. Faulk(T. Tucker, O. Stenberg)1–2
  2. 08:01TBLA. Cirelli(D. Raddysh)1–3
3rdshots 8–4
  1. 05:36TBLO. Bjorkstrandpower play(J. Guentzel, N. Kucherov)1–4

score reads STL–TBL

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

The numbers

XGBoost xG · NHL play-by-play
3.21
TBL chances
Goals their shots were worth
+0.8
Finishing
Goals above what those chances were worth
1.064
TBL puck luck
Above 1.000 — the bounces went their way
48.5%
Shot attempts
Under half — they were outshot
Split by club

Who controlled the game

2.96Expected goals3.21
TBL 52% of the chance quality
24Shots on goal17
4High-danger chances6
51All attempts (Corsi)48
Adjusted for score: STL 58% · TBL 42%
Faceoffs · TBL won47%off57%neu46%def
Source · NHL play-by-play · XGBoost xG
How the game was won

The danger ladder

shotsgoalsexpected
High dangerslot & crease
STL0 / 4 · 0.88 xG
TBL0 / 6 · 1.50 xG
Medium dangermid-range
STL0 / 13 · 1.56 xG
TBL3 / 12 · 1.30 xG
Low dangerperimeter & point
STL1 / 34 · 0.52 xG
TBL1 / 30 · 0.40 xG

TBL went 3-for-12 from medium danger on 1.30 expected goals — 1.7 above expected.

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

Finishing vs expected

expectedactual
STL
1 G · 2.96 xG · -2.0
TBL
4 G · 3.21 xG · +0.8
012345

STL finished -2.0 against expected, TBL +0.8.

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

Shot diet

goalsshots
STL
SNAP0/18
WRIST0/4
SLAP1/5
TIP IN0/5
BACKHAND0/3
DEFLECTED0/0
OTHER0/16
TBL
SNAP0/7
WRIST1/10
SLAP1/7
TIP IN2/4
BACKHAND0/1
DEFLECTED0/2
OTHER0/17
STL
TBL
Off the rush
0 G on 19
1.75 xG
4 G on 20
2.43 xG
Off rebounds
0 G on 3
0.56 xG
0 G on 3
0.55 xG

Snap shots carried the volume: STL went 0-for-18, TBL 0-for-7. TBL 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
J. Binnington
STL · 13/17 · .765
-0.8
saved above expected
D-
the night
By dangerG/attxGsaved
High danger0/61.5+1.5
Medium3/121.3-1.7
Low1/300.4-0.6

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

A. Vasilevskiy
TBL · 23/24 · .958
+2.0
saved above expected
A
the night
By dangerG/attxGsaved
High danger0/40.9+0.9
Medium0/131.6+1.6
Low1/340.5-0.5

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

66 shots · press play to watch the game back

Where the shots came from

NHL play-by-play coordinates
STL
35 shots
1
Final
66 shots
TBL
31 shots
4
STL attackTBL attack
STL TBL Goal

Each club shoots toward its own end — STL 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
D. Raddysh
#43 · D · TBL
1 G · 2 A · 1 SOG · 22:43 on ice · +2
J. Guentzel
#59 · C · TBL
0 G · 2 A · 1 SOG · 20:31 on ice · -1
N. Kucherov
#86 · R · TBL
0 G · 2 A · 1 SOG · 16:36 on ice
Ranked from the box score — points first · Backcheck
What the model said beforehand

Before the game

Written Mon, Dec 22
Open the pre-game read
Written from the numbers

The read

Edited for clarity
◆ By the ModelJul 11, 9:29 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 favors Tampa Bay at 56% win probability, projecting a 2.3–2.7 goal spread in the Lightning's favor. The underlying case is clean: Tampa owns both ends of the ice at even strength.

The Blues are the hotter team by record—5–4–1 in their last 10 games—but the points mask a deeper problem. They're –7 in goal differential over that stretch, meaning they're winning ugly and vulnerable to correction. St. Louis sits at 49.0% expected goals and 48.0% Corsi at 5v5, a team being out-coached and out-executed.

Tampa Bay's advantages are structural. The Lightning generate 54.0% of expected goals and control 53.0% of shot attempts, establishing territorial tilt. These aren't marginal edges—they're the kind of possession differentials that compound over time.

The caveat is PDO. Tampa's 1.019 PDO is running hot, meaning the combination of team shooting percentage and goaltending save percentage sits above the long-run mean of 1.000. St. Louis sits at 1.000—they're getting exactly what their performance warrants. As the season wears on, expect the Lightning to cool toward their true talent line. This game doesn't guarantee regression, but the model prices it in.

Vasilevskiy's back-to-back status adds variance. A backup start tips the edge away from Tampa. A tired starter narrows the margin.

For St. Louis, the script is familiar: punch above their differential and avoid letting Tampa establish possession dominance. Jimmy Snuggerud (0.86 xG/60, 15 goals) and Dylan Holloway (0.82 xG/60, 13 goals) carry the offensive load and must resist becoming targeted defensive mismatches.

Tampa's offensive firepower is the difference. Brandon Hagel (1.10 xG/60, 23 goals) operates at an elite pace, and Anthony Cirelli (0.95 xG/60, 15 goals) creates separation. If St. Louis can't pressure the neutral zone, the Lightning's speed translates to volume.

The play: Tampa should win, but the margin tightens if Vasilevskiy is unavailable.

What the model said beforehand

The model's lean

TBL 56%
56%
TBL
Model favorite
44%
56%
STL50TBL

TBL by 12 points of win probability — a modest lean. Projected score STL 2.3–2.7 TBL; 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
STL← edge
edge →TBL
49.0%54.0%
48.0%53.0%
2.342.67
2.402.28
2.002.38
2.121.85
1.0001.019

TBL holds 6 of 6 process categories — and the luck row (1.000 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
STL
5-4-1
-7 GD · 2d rest
TBL
3-6-1
+0 GD · 1d rest
1.000
STL 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 49.0%.
  • 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 49.0%.
  • The Lightning drive Corsi at 53.0% — expect territorial tilt.
  • A. Vasilevskiy is on a back-to-back — watch for a backup start or a tired starter.
  • The Blues are the hotter team by points pace (5-4-1 in their last 10).
  • The Blues are underwater at -7 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
STL
Expected in goal
J. Hofer
2 days rest.931 last start
Backup Joel Hofer · +11.7 GSAx this season

No completed game on file for this club yet.

TBL
Expected in goal
A. Vasilevskiy
back-to-back.818 last start
Backup Andrei Vasilevskiy · +24.7 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
STL
Jimmy Snuggerud15G 22A
0.86 xG/60 · 2 HD · 11.9% sh
Dylan Holloway13G 24A
0.82 xG/60 · 1 HD · 10.8% 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

Where to next