Shutdown / Two-way
Drive-defence with deployment removed by a league-wide straight-line fit on zone starts, opponent quality and first-line share, restated at 50% offensive-zone starts.
Defencemen who shut down the other side, deployment removed
Chances suppressed per 60 against his club without him, after the part explained by zone starts, opponent quality and first-line share is taken out (fit across defencemen: each 10 points of offensive-zone start share is worth of raw suppression, each 10 points of first-line share ). The pair he plays on, his partner and how much of his time is against first lines are shown so the role is visible.
Defencemen who win both ends, deployment removed
Adjusted offence and adjusted defence added together: chances created minus chances allowed, against his club without him, with zone starts, opponent quality and first-line share removed. A defenceman who drives play at a fast pace can allow more chances than a stay-at-home partner and still come out far ahead here; Shutdown alone would not show that.
Defencemen their clubs trust shorthanded
Share of his club's shorthanded time he was on the ice for, from the shift charts. This is a measured sign of the coach's trust, not a measure of results.
Defencemen who win the puck and do not give it away
Takeaways minus giveaways per 60 minutes, with own-end giveaways shown, from the acts the play-by-play records by player. These are the league's scorers' calls and vary by rink, so read them beside Shutdown rather than instead of it.
Defencemen who create the most, deployment removed
Chances created per 60 against his club without him, with zone starts and opponent quality removed the same way, beside the chance quality his passes produced (Setup) and his real points.
Best value on defence
Projected production priced at open-market salary, minus the cap hit, per season of the deal. Shutdown and Offensive drive are shown beside the surplus, because the value board prices production and these two say what the production leaves out.
Shutdown / Two-way
Definition. Drive-defence with deployment removed by a league-wide straight-line fit on zone starts, opponent quality and first-line share, restated at 50% offensive-zone starts.
Inputs. shifts (measured), events (measured), xg-model (derived). Built from. Drive-defence, faceoff locations, Company, first-line share.
Constants. restatement = ().
Reliability.
Not measured yet: .
Validity.
- pairs
- n
- nextSeason
- discriminant
- baselines
- verdict
Uncertainty.
Not measured yet: .
Shrinkage.
Bias ledger.
- Slices tested
- Survive FDR
Sensitivity.
Not measured yet: .
Depends on. expected goals (trained 2023-24, 2024-25, tested 2025-26, AUC ) · model card
Limits. Removes the average effect of deployment, not a club's system; partner effects are shown, not removed (RAPM removes them). The isolated version is rapm.
Signed by Chief of measures (data desk); weekly card review; full assay each season; last assay 2026-10-18; test record.