Hockey data glossary

A shot-attempt metric counting all shots on goal, missed shots and blocked shots, used as a proxy for puck possession.

A shot-quality metric that estimates the probability each shot becomes a goal, based on factors like location and shot type.

A shot-attempt metric like Corsi but excluding blocked shots, often used as a possession and shot-suppression proxy.

Catch-all value metrics that estimate how many goals or wins a player adds versus a freely available replacement.

Scoring chances from the most dangerous areas of the ice (typically the slot), where shots convert at much higher rates.

The sum of a team’s shooting percentage and save percentage, used as a rough indicator of luck that tends to regress toward 100.

In hockey, PK means penalty kill — the shorthanded unit — and PK% is the share of times that unit prevents the opponent from scoring.

An umbrella idea for controlling the puck and the shot share; usually measured with proxies like Corsi and zone entries.

The share of power plays on which a team scores at least one goal.

A regression method that isolates a player’s on-ice impact after adjusting for teammates, competition and situation.

The share of shots on goal a goaltender stops; increasingly adjusted for shot quality.

The share of shots on goal that become goals — high variance in small samples.

How a team gains the offensive zone — carrying the puck in vs dumping it — and how effectively they generate offense from each.