Leveraging Minute-by-Minute Soccer Match Event Data to Adjust Team's Offensive Production for Game Context

TL;DR

This paper develops a statistical model to adjust soccer offensive statistics based on game context, providing more accurate assessments of team performance by accounting for factors like score difference, game minute, and red cards.

Contribution

It introduces a count-response Generalized Additive Model that incorporates multiple contextual features to normalize offensive production across different game situations.

Findings

Adjusted offensive stats better reflect true team performance

Model reduces bias caused by game situation variability

Provides a standardized comparison metric for teams across matches

Abstract

In soccer, game context can result in skewing offensive statistics in ways that might misrepresent how well a team has played. For instance, in England's 1-2 loss to France in the 2022 FIFA World Cup quarterfinal, England attempted considerably more shots (16 to France's 8) and more corners (5 to 2), potentially suggesting they played better despite the loss. However, these statistics were largely accumulated when France was ahead and more willing to concede offensive initiative to England. To explore how game context influences offensive performance, we analyze minute-by-minute event-sequenced match data from 15 seasons across five major European leagues. Using count-response Generalized Additive Modeling, we consider features such as score and red card differential, home/away status, pre-match win probabilities, and game minute. Moreover, we leverage interaction terms to test several intuitive hypotheses about how these features might cooperate in explaining offensive production. The selected model is then applied to project offensive statistics onto a standardized "common denominator" scenario: a tied home game with even men on both sides. The adjusted numbers - in contrast to regular game totals that disregard game context - offer a more contextualized comparison, reducing the likelihood of misrepresenting the relative quality of play.