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

Lightning shut out the Mammoth, 2-0

The verdict · earned

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

UTA 0 · TBL 2
◆ By the ModelJul 12, 2:42 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

A. Vasilevskiy's perfect night obscured how squandered Tampa Bay's offensive dominance actually was. The Lightning held a 4.33–3.84 expected-goals edge but couldn't convert—0 for 5 on high-danger chances—allowing Utah to stay within sight until the scoreboard betrayed the underlying script.

The Lightning claimed 51% of shot attempts (29–28) and out-generated Utah on quality, posting 0.082 expected goals per shot against Utah's 0.059. Yet they scored only twice. A. Vasilevskiy's 28 saves on 28 shots (+3.84 versus expected) did the heavy lifting, a goaltending performance rarely seen at the professional level.

K. Vejmelka on the Utah side was no slouch—27 of 29 saves, +2.33 against his xG, and a perfect 5 for 5 on high-danger chances. The issue: his team never generated the volume. Utah trailed in both shot volume and shot quality, then compounded the problem by underperforming their own expected goals by 3.84.

Neither team was ruthless with rebounds. Tampa crashed the net and created 3 rebound opportunities but converted none. Utah manufactured 6 and scored on zero. This was a game the advanced stats said should have been much tighter—the Lightning generated 53% of expected goals but got 100% of the result.

The outcome hinged on goaltending: A. Vasilevskiy's flawless execution versus K. Vejmelka's strong night that came up just short. When one team shoots better but can't capitalize, and the other's goalie is untouchable, the scoreboard reflects the goalie, not the system. That's what happened here.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Jan 26
UTA
0
TBL
2

Lightning shut out the Mammoth, 2-0

Chances 3.8 – 4.3Did they deserve it? →
Did they deserve it?

The Lightning earned this one.

Expected goals · chance value
UTA
3.84
TBL
4.33
47% of the chances53%

The board read UTA 0, TBL 2. The chances read UTA 3.8, TBL 4.3.

Our xG model · NHL play-by-play · all situations
Luck check
TBL
−2.3
goals above expected
TBL4.33 expected · 2 scored
Expected
Scored
UTA3.84 expected · 0 scored
Expected
Scored

The Mammoth left 3.8 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 17:38TBLD. RaddyshPP0–1
  2. P3 19:14TBLA. CirelliPP0–2
NHL play-by-play · chance value from our xG model
Where the shots came from
UTA
44 shots
0
Final
88 shots
TBL
44 shots
2
UTA attackTBL attack
UTA TBL Goal
44
shots · 0 in
44
shots · 2 in
Every unblocked shot · press play to replay it
Chances by danger
UTATBL
0 / 3
0.70 xG
High danger
0 / 5
1.36 xG
0 / 23
2.73 xG
Medium
1 / 21
2.38 xG
0 / 39
0.41 xG
Low
1 / 27
0.59 xG

The Mammoth went 0 for 3 from the slot.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A+
A. Vasilevskiy
+3.8
TBL · 28/28
A
K. Vejmelka
+2.3
UTA · 27/29
The numbers, checked
BACKCHECK

Lightning shut out the Mammoth, 2-0

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 12–11no goals
    2ndshots 8–6
    1. 17:38TBLD. Raddyshpower play(N. Kucherov, J. Guentzel)0–1
    3rdshots 8–12
    1. 19:14TBLA. Cirellipower play(J. Moser, N. Kucherov)0–2

    score reads UTA–TBL

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

    The numbers

    XGBoost xG · NHL play-by-play
    4.33
    TBL chances
    Goals their shots were worth
    −2.3
    Finishing
    Goals below what those chances were worth
    1.038
    TBL puck luck
    Above 1.000 — the bounces went their way
    44.9%
    Shot attempts
    Under half — they were outshot
    Split by club

    Who controlled the game

    3.84Expected goals4.33
    TBL 53% of the chance quality
    28Shots on goal29
    3High-danger chances5
    65All attempts (Corsi)53
    Adjusted for score: UTA 57% · TBL 43%
    Faceoffs · TBL won50%off50%neu44%def
    Source · NHL play-by-play · XGBoost xG
    How the game was won

    The danger ladder

    shotsgoalsexpected
    High dangerslot & crease
    UTA0 / 3 · 0.70 xG
    TBL0 / 5 · 1.36 xG
    Medium dangermid-range
    UTA0 / 23 · 2.73 xG
    TBL1 / 21 · 2.38 xG
    Low dangerperimeter & point
    UTA0 / 39 · 0.41 xG
    TBL1 / 27 · 0.59 xG

    UTA went 0-for-23 from medium danger on 2.73 expected goals — 2.7 left on the table.

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

    Finishing vs expected

    expectedactual
    UTA
    0 G · 3.84 xG · -3.8
    TBL
    2 G · 4.33 xG · -2.3
    012345

    UTA finished -3.8 against expected, TBL -2.3.

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

    Shot diet

    goalsshots
    UTA
    SNAP0/26
    SLAP0/5
    TIP IN0/6
    WRIST0/0
    BACKHAND0/7
    POKE0/0
    OTHER0/21
    TBL
    SNAP0/11
    SLAP1/9
    TIP IN0/7
    WRIST1/12
    BACKHAND0/4
    POKE0/1
    OTHER0/9
    UTA
    TBL
    Off the rush
    0 G on 28
    2.82 xG
    1 G on 27
    2.89 xG
    Off rebounds
    0 G on 6
    0.72 xG
    0 G on 3
    0.62 xG

    Snap shots carried the volume: UTA went 0-for-26, TBL 0-for-11.

    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
    K. Vejmelka
    UTA · 27/29 · .931
    +2.3
    saved above expected
    A
    the night
    By dangerG/attxGsaved
    High danger0/51.4+1.4
    Medium1/212.4+1.4
    Low1/270.6-0.4

    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

    A. Vasilevskiy
    TBL · 28/28 · 1.000
    +3.8
    saved above expected
    A+
    the night
    By dangerG/attxGsaved
    High danger0/30.7+0.7
    Medium0/232.7+2.7
    Low0/390.4+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

    88 shots · press play to watch the game back

    Where the shots came from

    NHL play-by-play coordinates
    UTA
    44 shots
    0
    Final
    88 shots
    TBL
    44 shots
    2
    UTA attackTBL attack
    UTA TBL Goal

    Each club shoots toward its own end — UTA 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
    N. Kucherov
    #86 · R · TBL
    0 G · 2 A · 5 SOG · 18:20 on ice
    J. Moser
    #90 · D · TBL
    0 G · 1 A · 3 SOG · 25:29 on ice
    D. Raddysh
    #43 · D · TBL
    1 G · 0 A · 3 SOG · 25:17 on ice
    Ranked from the box score — points first · Backcheck
    What the model said beforehand

    Before the game

    Written Mon, Jan 26
    Open the pre-game read
    Written from the numbers

    The read

    Edited for clarity
    ◆ By the ModelJul 12, 2:40 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 Lightning are favored here, but barely. The model projects a 2.5 to 2.7 goal game with Tampa Bay at 53% win probability—a genuine toss-up.

    Both teams generated similar shot volume at even strength. Utah posted 52.0% xG% and 53.0% Corsi%. Tampa Bay posted 54.0% xG% and 53.0% Corsi%—a marginal edge in possession. The Lightning's PDO of 1.019 signals they're running hot and regression should follow. Utah's 1.003 PDO suggests closer alignment with their true talent.

    Goaltending adds uncertainty. J. Johansson faces a back-to-back, which could trigger a backup start or a fatigued starter.

    Utah's offense centers on Dylan Guenther, who generates 1.02 xG per 60 and has scored 28 goals with 15 assists, 3 from high-danger areas. His 16.8% shooting rate leaves room for variance. Daniil But sits at 1.01 xG/60 with just 2 goals and 2 assists, 1 from a high-danger area. He carries a 5.6% shooting rate—among the lowest on the team.

    Tampa Bay counters with Brandon Hagel, who leads at 1.10 xG per 60 and has posted 23 goals and 26 assists, 2 from high-danger areas, at 15.8% shooting. Anthony Cirelli records 0.95 xG/60 and has scored 15 goals, 5 from high-danger areas, at 17.0%—an unusual production suggesting some luck.

    Utah's defensive weak link is Maveric Lamoureux. Tampa Bay's is Victor Hedman. Both teams carry an unusual tactical fingerprint: 0% high-danger goal rate and 0% rebound goal rate, suggesting shot distribution patterns unlikely to persist.

    The Lightning's talent edge is minimal. Utah can steal this.

    What the model said beforehand

    The model's lean

    TBL 53%
    53%
    TBL
    Model favorite
    47%
    53%
    UTA50TBL

    TBL by 6 points of win probability — a modest lean. Projected score UTA 2.5–2.7 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
    UTA← edge
    edge →TBL
    52.0%54.0%
    53.0%53.0%
    2.642.67
    2.392.28
    2.262.38
    1.991.85
    1.0031.019

    TBL holds 6 of 6 process categories — and the luck row (1.003 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
    UTA
    8-1-1
    +14 GD · 2d rest
    TBL
    8-1-1
    +19 GD · 1d rest
    1.003
    UTA PDO
    Luck gauge · drifts to 1.000
    1.019
    TBL PDO
    Luck gauge · drifts to 1.000
    What decides it

    Keys to the game

    Regression watch
    • The Lightning's PDO is 1.019 — running hot, expect some regression.
    Things to watch
    • J. Johansson is on a back-to-back — watch for a backup start or a tired starter.
    • The Lightning's PDO is 1.019 — running hot, expect some regression.
    Last game's lineup · confirmed at warm-up

    Lineups

    NHL box score
    UTA
    Expected in goal
    K. Vejmelka
    2 days rest.931 last start
    Backup Karel Vejmelka · +6.9 GSAx this season

    No completed game on file for this club yet.

    TBL
    Expected in goal
    J. Johansson
    back-to-back.793 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
    UTA
    Dylan Guenther28G 15A
    1.02 xG/60 · 3 HD · 16.8% sh
    Daniil But2G 2A
    1.01 xG/60 · 1 HD · 5.6% 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