Concussion (HIA) Susceptibility

Overview

This pillar assesses a rugby player's susceptibility to a Head Injury Assessment (HIA) by analyzing their injury history against the physicality of their upcoming opponent. It provides a crucial edge in player-specific and live trading markets where a key player's removal can dramatically alter the game.

What It Does

It synthesizes a player's concussion history, their defensive workload, and their on-field position with a proprietary 'Opponent Physicality Rating'. This rating is derived from the opposing team's tackling statistics and penalty records. The pillar then generates a specific HIA Risk Score for the player for that particular match.

Why It Matters

A player leaving the field for an HIA is a high-impact event that prediction markets often struggle to price correctly beforehand. This pillar identifies these high-risk scenarios, offering predictive power on player prop bets, live odds shifts, and even final match outcomes.

How It Works

First, we compile a player's HIA and concussion history from official injury reports over the last 24 months. Next, we analyze their recent defensive statistics, such as tackles per game. Then, we calculate the opponent's physicality based on their forward pack's tackle dominance and disciplinary record. These inputs are weighted to produce a final HIA Susceptibility Score.

Methodology

The HIA Susceptibility Score is calculated using a weighted formula: (0.5 * HIA Count in last 24 months) + (0.3 * Tackles per 80 mins) + (0.2 * Opponent Physicality Index). The Opponent Physicality Index is a composite metric based on the opposing team's dominant tackles, high tackle penalties, and average player weight in the forward pack.

Edge & Advantage

This pillar moves beyond simple injury lists by modeling the specific interaction between a vulnerable player and an aggressive opponent, uncovering risks the general market overlooks.

Key Indicators

• Previous HIAs (24m)

  high

  The total number of confirmed Head Injury Assessments a player has had in the last 24 months.

• Opponent Physicality Rating

  high

  A composite score reflecting the opposing team's tackling aggression and frequency of high-impact collisions.

• Tackle Workload

  medium

  The average number of tackles the player makes per game, indicating their exposure to contact.

• Positional Risk

  low

  The inherent risk associated with a player's position, with positions like fly-half or fullback often being more exposed.

Data Sources

• Official League Injury Reports

  Provides verified data on player concussions and time missed due to head injuries.

• Stats Perform / Opta

  Delivers detailed player performance data, including tackle counts, types, and defensive positioning.

• Video Analysis Services

  Used for qualitative assessment of tackle technique and unrecorded head contacts.

Example Questions This Pillar Answers

• → Will Player X be removed for a Head Injury Assessment in the upcoming match?
• → Will the total number of in-game HIAs be over/under 1.5?
• → Will a starting player for Team A fail their HIA and not return to the field?

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