Expected Assists (xA)

Intermediate 10 min read 485 views Nov 25, 2025

Expected Assists (xA)

Expected assists quantify the quality of chance creation. This chapter covers pass quality modeling, pre-assist actions, assist overperformance analysis, and creative midfielder evaluation. Understand the relationship between xA and actual assists.

Topics Covered

  • Modeling pass quality and danger
  • Pre-assist actions and sequences
  • Expected assists vs actual assists
  • Chance creation metrics
  • Assist overperformance and underperformance
  • Creative midfielder evaluation

Code Examples

Calculate True Shooting %

Calculate True Shooting Percentage - measures overall shooting efficiency

def calculate_true_shooting(points, fga, fta):
    """Calculate True Shooting Percentage
    Formula: TS% = PTS / (2 * (FGA + 0.44 * FTA))
    """
    tsa = 2 * (fga + 0.44 * fta)
    if tsa == 0:
        return 0
    return round((points / tsa) * 100, 1)

# Example: Player with 25 PPG, 18 FGA, 8 FTA
ts = calculate_true_shooting(25, 18, 8)
print(f"TS%: {ts}%")  # Elite: >60%, Good: 55-60%

Discussion

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Table of Contents
Related Topics
Build-Up Play Analysis int
Passing Metrics and Networks int
Set Piece Analytics int
Possession Value Models adv
Progressive and Penetrative Passing int
Quick Actions
Glossary