Motion-blurred skater in a Buffalo Sabres sweater
Breakdown · BUF at TBL

U. Luukkonen stands tall as the Sabres edge the Lightning

The verdict · coin flip

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

BUF 6 · TBL 2
◆ By the ModelJul 12, 4:56 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 Sabres rolled past the Lightning 6-2 in a game the underlying numbers suggested was far closer. Tampa held 52% of shot attempts (38–35), a 4.71–4.51 expected-goals edge, and a 9–4 advantage in high-danger chances. Yet they lost by four. Goaltending determined this gap entirely.

U. Luukkonen stopped 36 of 38 shots with a 0.947 save percentage, outperforming his expected save total by 2.71 goals. A. Vasilevskiy, Tampa's backup, conceded 9 goals on 14 shots—a 0.643 save percentage that underperformed expected outcomes by 3.20 goals. J. Johansson, Tampa's starter, actually outperformed expectations by 1.71 goals, but one backup's elite performance and another's catastrophic collapse determined the final margin far more than play at even strength.

Buffalo was lethal off the rush, converting 6 of 34 chances. Tampa managed only 2 of 33, despite being the team that dominated possession and chance quality. The Sabres also scored 3 goals from low-danger areas—plays the opposing goalie typically stops. Luukkonen's performance masked what was, for most of the game, a team that controlled neither possession nor shot quality.

This was a game where the scoreboard and the underlying data diverged sharply—a 6-2 final that rewarded execution in one dimension while ignoring evidence across nearly every other metric.

The breakdown in twelve frames

Swipe it

Every number is from this page
Final · Feb 28
BUF
6
TBL
2

U. Luukkonen stands tall as the Sabres edge the Lightning

Chances 4.5 – 4.7Did they deserve it? →
Did they deserve it?

Dead even on chances. The Sabres took it anyway.

Expected goals · chance value
BUF
4.51
TBL
4.71
49% of the chances51%

The board read BUF 6, TBL 2. The chances read BUF 4.5, TBL 4.7.

Our xG model · NHL play-by-play · all situations
Luck check
BUF
+1.5
goals above expected
BUF4.51 expected · 6 scored
Expected
Scored
TBL4.71 expected · 2 scored
Expected
Scored

The Lightning left 2.7 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 05:25BUFR. Dahlin1–0
  2. P1 06:15BUFJ. Norris2–0
  3. P1 08:18BUFJ. Norris3–0
  4. P1 15:06BUFT. Thompson4–0
  5. P2 01:54BUFZ. Metsa5–0
  6. P2 16:03TBLD. James5–1
  7. P3 03:43BUFA. TuchPP6–1
+1 more on the full breakdown
NHL play-by-play · chance value from our xG model
Where the shots came from
BUF
50 shots
6
Final
101 shots
TBL
51 shots
2
BUF attackTBL attack
BUF TBL Goal
50
shots · 6 in
51
shots · 2 in
Every unblocked shot · press play to replay it
Chances by danger
BUFTBL
1 / 4
0.90 xG
High danger
1 / 9
2.09 xG
2 / 26
3.00 xG
Medium
0 / 17
1.95 xG
3 / 25
0.61 xG
Low
1 / 39
0.67 xG

High-danger looks: BUF 1 of 4, TBL 1 of 9.

Danger tiers by our xG model · high ≥ 20% chance
In the net
A+
J. Johansson
+3.5
TBL · 20/21
A+
U. Luukkonen
+2.7
BUF · 36/38
+1 more on the full breakdown
The numbers, checked
BACKCHECK

U. Luukkonen stands tall as the Sabres edge 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 10–14
  1. 05:25BUFR. Dahlin(O. Power)1–0
  2. 06:15BUFJ. Norris(J. Doan, Z. Metsa)2–0
  3. 08:18BUFJ. Norris(B. Byram, Z. Benson)3–0
  4. 15:06BUFT. Thompson(P. Krebs, R. Dahlin)4–0
2ndshots 20–12
  1. 01:54BUFZ. Metsa5–0
  2. 16:03TBLD. James(O. Bjorkstrand, V. Hedman)5–1
3rdshots 5–12
  1. 03:43BUFA. Tuchpower play(R. Dahlin, J. Quinn)6–1
  2. 05:27TBLV. Hedman(D. Raddysh)6–2

score reads BUF–TBL

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

The numbers

XGBoost xG · NHL play-by-play
4.51
BUF chances
Goals their shots were worth
+1.5
Finishing
Goals above what those chances were worth
1.078
BUF puck luck
Above 1.000 — the bounces went their way
45.8%
Shot attempts
Under half — they were outshot
Split by club

Who controlled the game

4.51Expected goals4.71
TBL 51% of the chance quality
35Shots on goal38
4High-danger chances9
55All attempts (Corsi)65
Adjusted for score: BUF 39% · TBL 61%
Faceoffs · TBL won63%off44%neu50%def
Source · NHL play-by-play · XGBoost xG
How the game was won

The danger ladder

shotsgoalsexpected
High dangerslot & crease
BUF1 / 4 · 0.90 xG
TBL1 / 9 · 2.09 xG
Medium dangermid-range
BUF2 / 26 · 3.00 xG
TBL0 / 17 · 1.95 xG
Low dangerperimeter & point
BUF3 / 25 · 0.61 xG
TBL1 / 39 · 0.67 xG

BUF went 3-for-25 from low danger on 0.61 expected goals — 2.4 above expected.

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

Finishing vs expected

expectedactual
BUF
6 G · 4.51 xG · +1.5
TBL
2 G · 4.71 xG · -2.7
01234567

BUF finished +1.5 against expected, TBL -2.7.

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

Shot diet

goalsshots
BUF
WRIST5/30
SNAP0/7
SLAP0/4
TIP IN1/4
BACKHAND0/5
OTHER0/5
TBL
WRIST1/26
SNAP0/7
SLAP1/10
TIP IN0/5
BACKHAND0/3
OTHER0/14
BUF
TBL
Off the rush
6 G on 34
3.39 xG
2 G on 33
3.60 xG
Off rebounds
0 G on 2
0.29 xG
0 G on 3
0.47 xG

Wrist shots carried the volume: BUF went 5-for-30, TBL 1-for-26. BUF scored 6 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
U. Luukkonen
BUF · 36/38 · .947
+2.7
saved above expected
A+
the night
By dangerG/attxGsaved
High danger1/92.1+1.1
Medium0/171.9+1.9
Low1/390.7-0.3

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. Johansson
TBL · 20/21 · .952
+3.5
saved above expected
A+
the night
By dangerG/attxGsaved
High danger1/40.9-0.1
Medium2/263.0+1.0
Low3/250.6-2.4

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 · 9/14 · .643
-0.5
saved above expected
D
the night
By dangerG/attxGsaved
High danger1/40.9-0.1
Medium2/263.0+1.0
Low3/250.6-2.4

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

101 shots · press play to watch the game back

Where the shots came from

NHL play-by-play coordinates
BUF
50 shots
6
Final
101 shots
TBL
51 shots
2
BUF attackTBL attack
BUF TBL Goal

Each club shoots toward its own end — BUF 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. Dahlin
#26 · D · BUF
1 G · 2 A · 2 SOG · 24:32 on ice · +2
V. Hedman
#77 · D · TBL
1 G · 1 A · 2 SOG · 16:53 on ice · +1
J. Norris
#9 · C · BUF
2 G · 0 A · 2 SOG · 15:03 on ice · +2
Ranked from the box score — points first · Backcheck
What the model said beforehand

Before the game

Written Sat, Feb 28
Open the pre-game read
Written from the numbers

The read

Edited for clarity
◆ By the ModelJul 12, 4:58 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 favors Tampa Bay at 56% win probability, projecting a 2.4-2.7 goal margin. But the forecast hinges on a critical caveat: both teams are running on unsustainable PDO luck.

Start with underlying play. The Lightning command the game at 54.0% expected goals compared to Buffalo's 50.0%, translating to 53.0% Corsi dominance. That territorial advantage—Tampa will spend the night in Buffalo's end—underpins the 56% call. But it's modest, and the model knows it.

The real edge comes from the regression opportunity. The Lightning's PDO sits at 1.019; the Sabres' at 1.020. Both teams are scoring and preventing at rates beyond what their shot profile allows. That gap always closes.

On firepower, Jason Zucker leads Buffalo at 1.07 expected goals per 60 with 14 goals and 14 assists, but only 6 rank as high-danger—his 15.1% shooting rate runs ahead of his positioning. Josh Doan (1.01 xG/60, 15G 18A) carries a leaner 11.5% shooting rate, more volume-dependent than conversion-driven.

Brandon Hagel anchors Tampa's attack at 1.10 xG/60 with 23 goals and 26 assists but just 2 high-danger goals—his 15.8% shooting rate has done heavy lifting beyond shot quality. Anthony Cirelli is the cleaner producer: 0.95 xG/60, 15G 18A with 5 high-danger goals at 17.0% shooting. That proportion—high-danger tallies to total output—reads as legitimacy beneath Cirelli's production.

The model sees Tampa's advantage as production parity backed by superior volume: Hagel and Cirelli are outworking Zucker and Doan. But with PDO regression looming for both sides, the Lightning's 56% edge is less a prediction than a probabilistic nod to the team that's been the better underlying operation—tempered by the knowledge that luck corrections can happen anytime.

What the model said beforehand

The model's lean

TBL 56%
56%
TBL
Model favorite
44%
56%
BUF50TBL

TBL by 12 points of win probability — a modest lean. Projected score BUF 2.4–2.7 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
BUF← edge
edge →TBL
50.0%54.0%
49.0%53.0%
2.552.67
2.552.28
2.352.38
1.901.85
1.0201.019

TBL holds 6 of 6 process categories — and the luck row (1.020 vs 1.019) says BUF has been getting the bounces, which tends not to last.

Source · NHL stats API + our xG · 5v5
Form · No games yet
BUF
0-0-0
+0 GD · 0d rest
TBL
0-0-0
+0 GD · 0d rest
1.020
BUF 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 50.0%.
  • The Lightning drive Corsi at 53.0% — expect territorial tilt.
Regression watch
  • The Lightning's PDO is 1.019 — running hot, expect some regression.
  • The Sabres' PDO is 1.020 — running hot, expect some regression.
Things to watch
  • The Lightning own the underlying play — 54.0% 5v5 xG vs 50.0%.
  • The Lightning drive Corsi at 53.0% — expect territorial tilt.
  • The Lightning's PDO is 1.019 — running hot, expect some regression.
Computed danger · scouting

Players to watch

NHL stats API · our xG
BUF
Jason Zucker14G 14A
1.07 xG/60 · 6 HD · 15.1% sh
Josh Doan15G 18A
1.01 xG/60 · 2 HD · 11.5% 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