Team Strength Index

Four components, one common sample

Attack (35%) rewards five-on-five xG created per game. Defense (35%) rewards limiting five-on-five xG per game. Goaltending (20%) uses team GSAx per game: expected goals faced minus actual goals allowed on the same covered attempts.

Special teams (10%) equally blends power-play xG per official opportunity and opponent power-play xG allowed per opportunity faced. Power-play chances do not enter the five-on-five components. Goaltending measures the difference between expected and actual goals across eligible situations.

From metrics to a 0–100 index

Eligible teams are ordered for each metric and converted to league percentile scores. Ties receive the average tied position; lower-is-better metrics are reversed. The four scores are combined with the stated weights. Scores use unrounded values for ranking, with tied totals sharing ranks. A sole eligible team receives neutral component scores of 50.

Coverage and early samples

Teams need at least five fully covered games, coverage of at least 90% of their completed games, and nonzero power-play and penalty-kill opportunities. Every component uses the same covered games. Missing shot scores, situations, goalie identities or official opportunity records exclude that game from the common sample. Unrated teams remain visible. Fewer than ten covered games is flagged as an early sample.

What is included

Completed regular-season games from 2016–17 onward, season to date. Five-on-five means both teams have five skaters and a goalie. Goaltending and special teams can include overtime; shootouts and all goalie-pulled situations are excluded. Blocked attempts are excluded from xG. Rates are per covered game or official opportunity, not per minute.

What the score means

This describes performance against the league at each selected date. It is not a probability of winning, a standings forecast or an opponent-adjusted rating. The weights are transparent starting settings, not statistically optimized weights. There is no prior-season blending or availability adjustment. Rankings can change when other teams play.

Index version: strength_v1 · xG version: xg_v1. Earlier dates are recalculated with these versions. Weekly movement compares with seven calendar days earlier; no prior rank is shown when a team was not eligible then. Data corrections may revise historical views.