Backcheck
Combinations · chemistry

The Line Lab

Which trios actually work when they're on the ice together. We compare what a line shouldproduce given who's on it against what it actually produces — the difference is chemistry. Every unit below really played together at 5-on-5; nothing is hypothetical.

How to read this

Nothing here is invented: every line and pair below actually played together at 5-on-5, with real minutes attached. For each unit we show its observed — the slice of scoring chances it controlled while on the ice, where 50% means break-even.

The interesting part is the split. We first compute an : what those players should produce together if a line were just the sum of its parts. Whatever the real unit does beyond that is the — the closest a spreadsheet gets to measuring whether three players actually fit. Small-minute units are noisy, so read a big bonus on 30 minutes as a hypothesis, not a verdict — and remember this is a model estimate, not the coach's lineup card.

BASE
what the unit “should” produce — its members' individual profiles, added up
CHEM
observed share minus base: the whole vs. the sum of the parts
PROJ
base + chem — the model's expectation if the unit stays together
TICK
the hairline on each bar marks 50% — the break-even line
Fine print · verbatim from the model
  • Lines recovered from MoneyPuck lines.csv (5on5, observed deployment); chemistry = observed xG% minus additive archetype base. Model-estimated.
MTLMontreal Canadiens71 units observed · 5v5As of Sun, Sep 20
Forward lines
4 units
  • 01
    Nick Suzuki – Alexandre Texier – Cole Caufield
    Together this unit controls play outright — 62% of expected goals, 11 points better than these players' profiles predict. Real chemistry.
    157 min together 51 +11 → proj 62
    62.0%
    · obs.
  • 02
    Brendan Gallagher – Kirby Dach – Zachary Bolduc
    Together this unit controls play outright — 58% of expected goals, 9 points better than these players' profiles predict. Real chemistry.
    91 min together 49 +9 → proj 58
    58.0%
    · obs.
  • 03
    Oliver Kapanen – Juraj Slafkovsk – Ivan Demidov
    Together this unit plays about even — 48% of expected goals, 4 points better than these players' profiles predict. Real chemistry.
    364 min together 44 +4 → proj 48
    48.0%
    · obs.
  • 04
    Josh Anderson – Jake Evans – Joe Veleno
    Together this unit gets buried territorially — 43% of expected goals, about what the talent on it predicts.
    67 min together 42 +1 → proj 43
    43.0%
    · obs.
Defense pairs
3 units
  • 01
    Noah Dobson – Lane Hutson
    Together this unit controls play outright — 59% of expected goals, 28 points better than these players' profiles predict. Real chemistry.
    303 min together 31 +28 → proj 59
    59.0%
    · obs.
  • 02
    Alexandre Carrier – Kaiden Guhle
    Together this unit controls play outright — 57% of expected goals, 31 points better than these players' profiles predict. Real chemistry.
    174 min together 27 +31 → proj 57
    57.0%
    · obs.
  • 03
    Jayden Struble – Arber Xhekaj
    Together this unit gets buried territorially — 42% of expected goals, 17 points better than these players' profiles predict. Real chemistry.
    108 min together 25 +17 → proj 42
    42.0%
    · obs.
◆ The ModelObserved 5v5 deployment · MoneyPuck linesModel-estimated proxy, not a lineup card

Lines recovered from MoneyPuck lines.csv (5on5, observed deployment); chemistry = observed xG% minus additive archetype base. Model-estimated.