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

Lightning run the Predators off the ice on the underlying numbers

The verdict · earned

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

NSH 1 · TBL 2
Preseason · exhibition

Split squads and prospects, not the club that will take the ice in October. The shots and grades below describe this game only: nothing here counts toward season records, form, rankings or player numbers.

◆ By the ModelSep 22, 10:39 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

Tampa Bay beat Nashville 2-1, and the final score is the only close thing about how this game actually played out. I. Mikheyev opened the scoring less than two minutes in, Nashville answered before the period was half over, and then Conor Geekie put the Lightning back ahead for good — the goal that decided things, even if nobody knew it yet. From there, Tampa Bay simply had the puck more than Nashville did, and it showed.

Mikheyev got the Lightning on the board early, finishing a feed from J. Carlson and B. Point to make it 0-1. Nashville answered in the first period as well: B. Martin scored off a setup from R. Schaefer and J. Ahcan to tie it 1-1. The answer didn't last. Later in the same period, Geekie snapped one home from the high slot off a pass from S. O'Reilly, and that turned out to be the winner. J. Saros made 20 saves on 22 shots for Nashville; A. Vasilevskiy stopped 12 of 13 at the other end.

Here's what the scoreboard hides: Tampa Bay controlled 70% of the expected goals at 5-on-5, outproducing Nashville 3.28 to 1.39. That is not a narrow edge — it means the Lightning were generating the better, more dangerous looks essentially all game, and a 2-1 final flatters how competitive this actually was. The shot-attempt battle told the same story, 63% Tampa Bay, and high-danger chances were even more lopsided: four for the Lightning, zero for the Predators. Nashville didn't manufacture a single high-quality look from the inner slot all night.

If anything, Tampa Bay should have won by more. The Lightning generated 3.28 expected goals and scored two, underperforming that number by 1.28 goals — a gap that traces straight back to J. Saros, who stopped 1.28 goals above what an average goaltender would have on that workload. That's not a Nashville defense that bent but didn't break; it's a goaltender who kept a blowout off the board.

The report card backs up the eye test. Nashville's offense grades out an F, its defense a D-, and its transition game an F as well — both teams went 0-for-their-power-plays, so special teams don't separate them, but 5-on-5 play does. The real red flag for Nashville is transition: the Predators allowed 30 rush shots worth 2.42 expected goals, and that pressure showed up in every period, not just once. That's the actual concern coming out of this loss — not the power play, not the goaltending, but how easily Tampa Bay got through the neutral zone.

The breakdown in twelve frames

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Every number is from this page
Final · Preseason · Sep 20
NSH
1
TBL
2

Lightning run the Predators off the ice on the underlying numbers

Chances 1.4 – 3.3Did they deserve it? →
Did they deserve it?

The Lightning earned this one.

Expected goals · chance value
NSH
1.39
TBL
3.28
30% of the chances70%

The board read NSH 1, TBL 2. The chances read NSH 1.4, TBL 3.3.

Our xG model · NHL play-by-play · all situations
Luck check
TBL
−1.3
goals above expected
TBL3.28 expected · 2 scored
Expected
Scored
NSH1.39 expected · 1 scored
Expected
Scored

Both sides finished close to what their chances were worth. This one was earned on the ice.

PDO = sh% + sv% · drifts to 1.000 over a season
Every goal, in order
  1. P1 01:33TBLI. Mikheyev0–1
  2. P1 07:39NSHB. Martin1–1
  3. P1 15:31TBLC. Geekie1–2
NHL play-by-play · chance value from our xG model
Chances by danger
NSHTBL
0 / 0
0.00 xG
High danger
0 / 4
1.12 xG
1 / 9
0.98 xG
Medium
2 / 16
1.55 xG
0 / 22
0.41 xG
Low
0 / 34
0.61 xG

High-danger looks: NSH 0 of 0, TBL 0 of 4.

Danger tiers by our xG model · high ≥ 20% chance
In the net
B+
J. Saros
+1.3
NSH · 20/22
B
A. Vasilevskiy
+0.4
TBL · 12/13
Report card
NSHTBL
OffenseFB+
DefenseD-A-
TransitionFA
Special teamsFF
GoaltendingB+C+
DisciplineB-C-
LuckB-D+
Seven dimensions, A+ to F · basis on the breakdown
Why it went the way it went
Why TBL won
  1. 01Won on the merits
  2. 02Dangerous off the rush
  3. 03The moment it turned
Why NSH lost
  1. 01Rush defense leaked all night
  2. 02Power play came up empty
  3. 03Paraded to the penalty box
Our storyline model · reasoning on the breakdown
The numbers, checked
BACKCHECK

Lightning run the Predators off the ice on the underlying numbers

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 / 09 · Final
Every goal, in order

How it happened

NHL play-by-play
1stshots 4–11
  1. 01:33TBLI. Mikheyev(J. Carlson, B. Point)0–1
  2. 07:39NSHB. Martin(R. Schaefer, J. Ahcan)1–1
  3. 15:31TBLC. Geekie(S. O'Reilly)1–2
2ndshots 4–7no goals
    3rdshots 5–4no goals

      score reads NSH–TBL

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

      The numbers

      XGBoost xG · NHL play-by-play
      3.28
      TBL chances
      Goals their shots were worth
      −1.3
      Finishing
      Goals below what those chances were worth
      1.005
      TBL puck luck
      About 1.000 — a normal night for bounces
      63.5%
      Shot attempts
      Over half — they had the puck more
      Split by club

      Who controlled the game

      1.39Expected goals3.28
      TBL 70% of the chance quality
      13Shots on goal22
      0High-danger chances4
      31All attempts (Corsi)54
      Adjusted for score: NSH 40% · TBL 60%
      Faceoffs · TBL won57%off82%neu60%def
      Source · NHL play-by-play · XGBoost xG
      How the game was won

      The danger ladder

      shotsgoalsexpected
      High dangerslot & crease
      NSH0 / 0 · 0.00 xG
      TBL0 / 4 · 1.12 xG
      Medium dangermid-range
      NSH1 / 9 · 0.98 xG
      TBL2 / 16 · 1.55 xG
      Low dangerperimeter & point
      NSH0 / 22 · 0.41 xG
      TBL0 / 34 · 0.61 xG

      TBL went 0-for-4 from high danger on 1.12 expected goals — 1.1 left on the table.

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

      Finishing vs expected

      expectedactual
      NSH
      1 G · 1.39 xG · -0.4
      TBL
      2 G · 3.28 xG · -1.3
      01234

      NSH finished -0.4 against expected, TBL -1.3.

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

      Shot diet

      goalsshots
      NSH
      WRIST0/12
      SNAP1/3
      SLAP0/2
      TIP IN0/2
      BACKHAND0/2
      BAT0/1
      OTHER0/9
      TBL
      WRIST0/16
      SNAP1/6
      SLAP0/6
      TIP IN1/6
      BACKHAND0/2
      BAT0/0
      OTHER0/18
      NSH
      TBL
      Off the rush
      1 G on 17
      1.16 xG
      2 G on 30
      2.42 xG
      Off rebounds
      0 G on 0
      0.00 xG
      0 G on 0
      0.00 xG

      Wrist shots carried the volume: NSH went 0-for-12, TBL 0-for-16. TBL 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. Saros
      NSH · 20/22 · .909
      +1.3
      saved above expected
      B+
      the night
      By dangerG/attxGsaved
      High danger0/41.1+1.1
      Medium2/161.6-0.5
      Low0/340.6+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

      A. Vasilevskiy
      TBL · 12/13 · .923
      +0.4
      saved above expected
      B
      the night
      By dangerG/attxGsaved
      Medium1/91.0-0.0
      Low0/220.4+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

      Graded against a league-average game

      Report card

      Seven dimensions · A+ to F
      DimensionNSHTBL
      Offense
      ▸Basis

      NSH Created 1.39 xG against a ~2.70 league-average game; 0 high-danger shots (0.00 xG) and 17 rush shots (1.16 xG).

      TBL Created 3.28 xG against a ~2.70 league-average game; 4 high-danger shots (1.12 xG) and 30 rush shots (2.42 xG).

      F
      59
      B+
      88
      Defense
      ▸Basis

      NSH Allowed 3.28 xG against a ~2.70 league-average game; conceded 4 high-danger shots (1.12 xG) and 30 rush shots (2.42 xG).

      TBL Allowed 1.39 xG against a ~2.70 league-average game; conceded 0 high-danger shots (0.00 xG) and 17 rush shots (1.16 xG).

      D-
      62
      A-
      91
      Transition
      ▸Basis

      NSH Rush shots 17–30, rush xG 1.16–2.42 (rush-based; public data has no zone entries).

      TBL Rush shots 30–17, rush xG 2.42–1.16 (rush-based; public data has no zone entries).

      F
      56
      A
      94
      Special teams
      ▸Basis

      NSH 0-for-5 on the power play (0%; league ≈21%) with 0.60 PP xG.

      TBL 0-for-4 on the power play (0%; league ≈21%) with 0.49 PP xG.

      F
      53
      F
      53
      Goaltending
      ▸Basis

      NSH +1.28 goals saved above expected on 22 shots against.

      TBL +0.39 goals saved above expected on 13 shots against.

      B+
      88
      C+
      79
      Discipline
      ▸Basis

      NSH Took 9 penalties for 34 PIM vs 10 for 36 on the other side.

      TBL Took 10 penalties for 36 PIM vs 9 for 34 on the other side.

      B-
      80
      C-
      70
      Luck

      Grades bounces, not skill — C is neutral

      ▸Basis

      NSH Finishing -0.39 goals vs xG plus +1.28 GSAx of save luck = +0.89 total. This grades luck, not skill — C is neutral, A is very lucky.

      TBL Finishing -1.28 goals vs xG plus +0.39 GSAx of save luck = -0.89 total. This grades luck, not skill — C is neutral, A is very lucky.

      B-
      82
      D+
      68
      Source · NHL play-by-play · xG engine · luck graded separately
      What the model flagged
      WARNINGNSH

      Rush defense leaked all night

      Gave up 30 rush shots worth 2.42 xG (2 goals) — transition gaps were there every period.

      Tighten neutral-zone structure and keep D gaps closed on entries.

      STRENGTHTBL

      Dangerous off the rush

      2 goals on 30 rush shots worth 2.42 xG.

      STRENGTHTBL

      Won on the merits

      The Lightning controlled 70% of expected goals (3.28–1.39) and won 2-1 — result matched process.

      WARNINGTBL

      Paraded to the penalty box

      Took 10 penalties for 36 minutes (opponent: 9 for 34).

      Cut the stick infractions — the penalty differential is a controllable.

      LUCKTBL

      Cold finishing night

      Scored 2 on 3.28 xG — -1.28 vs expected. The looks were there; the finish will come back.

      WARNINGNSH

      Power play came up empty

      0-for-5 with the man advantage on 0.60 PP xG.

      Rework PP entries and get a body to the net-front.

      Ranked from the box score

      Three stars

      Points first
      Three stars · computed, not voted
      J. Ahcan
      #47 · D · NSH
      0 G · 1 A · 4 SOG · 23:28 on ice · -2
      J. Carlson
      #74 · D · TBL
      0 G · 1 A · 2 SOG · 21:56 on ice · +1
      R. Schaefer
      #49 · L · NSH
      0 G · 1 A · 1 SOG · 20:10 on ice
      Ranked from the box score — points first · Backcheck
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