Assists RAPM
Ridge-regularized lineup regression of assists per 100 possessions.
| Status | implemented | Short Name | Ast RAPM |
|---|---|---|---|
| Rating Style | impact | Where Shown | player pages, players leaderboard |
Model Card
RAPM on the per-segment margin of assists (own minus opponent per 100 possessions), fit only on games whose play-by-play assists equal the box exactly. The ridge penalty is chosen by game-level cross-validation. Positive values mean a player's minutes raise their team's assists relative to the opponent's. Held-out check (date split: fit before a date, score later segments; ncaam 2022-23 and 2023-24, ncaaw 2023-24): correlation with the actual per-segment margin 0.110-0.136 for this model, 0.089-0.124 for the event Elo it replaces. Small in absolute terms: a segment holds about one such event.
Validation is computed for team models, APM, RAPM and the event models. This page shows output coverage and site placement for this model.
Selected League / Season
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Held-out player predictions
Plot Assists RAPM against any counting stat (one point per player, every season with a served list).
No current held-out results for this selection. Held-out player validation covers APM, RAPM and the event models.