What is Line Combination?

A set of three forwards who play together regularly, identified by analyzing ice-time patterns across the season.

What this tells us

When you see a line combination listed (like "McDavid-Draisaitl-Hyman"), you're looking at three forwards who spend meaningful time on the ice together. PuckLab identifies these groups by finding which trios log the most minutes as a unit at 5-on-5, so they're real pairings that actually happened, not theoretical constructs. This matters because linemates directly affect each other's stats — a star forward looks better when paired with a skilled winger.

Limitations

Line combinations shift constantly due to injuries, lineup decisions, and score effects. A line that played 500 minutes in October might barely play by February. Also, a trio that shares ice time doesn't necessarily play in a fixed formation — the center and wings might rotate based on which team has the puck. We're measuring *who played together*, not *how they played together*.

How PuckLab calculates this

PuckLab identifies line combinations by ranking three-forward units by co-ice-time at 5-on-5 strength. The ranking is recalculated weekly to reflect current roster construction.

Example

A contending team might have three line combinations that each log 400+ minutes of 5-on-5 time across the season. A rebuilding team or one hit by injuries might have half a dozen trios with similar ice time, since no one pairing sticks.