Archetype Defense Efficiency

Overview

This pillar moves beyond basic positional rankings to analyze how teams defend specific offensive archetypes. It identifies structural defensive flaws against unique playstyles, such as Rim-Running Centers versus Stretch Bigs.

What It Does

It categorizes every NBA player into distinct offensive archetypes using tracking data (e.g., Isolation Scorer, Pick-and-Roll Ball Handler, Spot-Up Shooter). It then calculates a defense's specific efficiency metrics (Points Per Possession, Effective Field Goal %) allowed against each archetype, isolating weaknesses that broad positional stats obscure.

Why It Matters

Sportsbooks often set lines based on general defensive rankings (e.g., 'Team X is 5th vs Centers'). However, a team might defend post-ups well but get destroyed by shooting big men. This nuance creates significant edge opportunities in player prop markets.

How It Works

The system ingests play-by-play and tracking data to cluster players into 12 functional archetypes. It then runs a regression on recent defensive performances (last 15 games weighted) to determine a 'Defensive Archetype Rating.' Finally, it compares the upcoming opponent's specific archetype stats against this rating to predict over/under performance.

Methodology

Utilizes K-Means clustering on offensive tracking variables (avg shot distance, dribbles per touch, time of possession) to define archetypes. Defensive efficiency is calculated via allowed Points Per Possession (PPP) and adjusted for pace (Pace-Adjusted Defensive Rating) and opponent usage rate deviations.

Edge & Advantage

Provides a granular edge by identifying specific matchup discrepancies where a player's playstyle directly targets a structural weakness in the opposing defensive scheme.

Key Indicators

• Archetype PPP Allowed

  high

  Points Per Possession allowed to a specific player style (e.g., Pick & Roll Handler)

• Foul Rate vs Archetype

  medium

  Frequency of fouls committed against specific playstyles, useful for FT props

• 3PT% Allowed by Zone

  high

  Defensive efficiency against specific court zones relative to the archetype's heat map

Data Sources

• NBA Advanced Stats

  Official tracking data for play types and defensive matchups

• Second Spectrum

  Optical tracking data for player movement and spacing

Example Questions This Pillar Answers

• → Will Tyrese Haliburton record Over 10.5 Assists vs the Knicks? (analyzing defense vs High-Pace Playmakers)
• → Will Myles Turner score Over 1.5 Three-Pointers? (analyzing defense vs Stretch Bigs)
• → Will Giannis Antetokounmpo score Over 30.5 Points? (analyzing defense vs Rim-Pressure Forwards)

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