‘xG Build up’: trust the process

Category: Team Analysis

We delve into the fundamental metric to know the degree of importance of defenders and midfielders in the construction of the plays: 'xG Build up'.

Published:10/02/2022

Among many other developments, the 21st century in football has not only been characterised by the link with statistics and their use on a large scale to analyse the game and find players with potential and talent, but also by how both the professional and the amateur relate to the different situations of the game. Thus, at no other time in history has there been such a collective awareness of possession as a concept and pressing as its flipside. In the past, they were not as important or as collectively and meticulously organised. And that has an impact on the use of advanced statistics.

In the last 15 years, possession has become a more profound concept, widely used to visualise the impact and performance of each team within a match and even relate the style of play of a sporting project. Translated into the world of statistics, we seek to know how each player is involved in the elaboration of plays that add up to many passes and what percentage of influence they have within their teams. And that is achieved with a metric, ‘xG Build up‘, and its variants: ‘xG Build up last 5 passes‘, ‘xG Build up in the final third‘ or ‘xG Build up ‘in Team’‘.

Joshua Kimmich, leading midfielder in xG Build up per 90 minutes


In recent weeks we delved into another metric, xG Chain, which determines which players are involved in passing sequences that end in a shot and therefore in generating an expected goal. However, many players may be part of the development, giving continuity to the play, ordering the team or crossing the dividing line with the ball under control in the face of opposition pressure, but not be fully represented, as in the end it is the attackers who do most of the shooting and assisting. And obviously we need to know who are the ones who develop these moves frequently beforehand.

The spirit of xG Build up is based on knowing which players are part of passing chains that end in a shot but without taking into account the last two links – shot and last pass -, thus measuring midfielders, centre-backs or full-backs who have an important influence on their team’s possessions. In this way, we can see the role of those players who accumulate and construct many plays that end up being relevant. You can conclude how important Toni Kroos or Trent Alexander-Arnold can be in this metric.

The value will indicate the amount of ‘expected goals’ they have helped to generate with their intervention in the play. In the case of Joshua Kimmich, the German is present in almost one expected goal per 90 minutes for Bayern Munich, an absolutely spectacular value, which speaks of his sensational ability to intervene, organise and create danger with his passes.

In the same way, this metric is not intended to remain rigid, but to generate variants such as ‘xG Build up last 5 passes’, to measure the final phase of a possession that ends in a shot, or ‘xG Build up in team’, with the aim of knowing which players have influence in teams that are not so protagonists or with so much quality to have the ball for so long.

We are Driblab, a consultancy specialized in the statistical analysis of players and teams; our work is focused on advising and minimizing risk in professional football decision-making in areas related to talent detection and footballer evaluations. Our database has more than 180,000 players from more than 180 competitions, covering information from all over the world. Here you can learn more about how we work and what we offer.

Autor: Alejandro Arroyo
For Team Analysis we also recommend you:

Sharjah FC and Driblab sign partnership agreement

Sharjah FC and Driblab sign partnership agreement.

Generating and conceding: the clearest chances in the Top-5 leagues

Which teams generate and concede the clearest chances? We could look at shots on goal for and against, but we would be missing out on the quality of these chances.

Real Betis and Driblab renew their collaboration agreement

Real Betis and Driblab renew their collaboration agreement

Young center-backs in Argentina: an opportunity to keep a close eye on

“Argentina is producing young center-backs with significant presence and performance. We highlight five that we consider interesting for personalized scouting.”

driblabPRO Release Notes: First Quarter 2024

We have deployed new functionalities and resources that streamline all the work of football professionals. driblabPRO updates and launches the following improvements for its clients and users in the football scouting world:

Málaga CF and Driblab sign a strategic collaboration agreement

Málaga CF and Driblab sign a strategic collaboration agreement

Balkan U-20 talent not to be missed

Balkan U-20 talent not to be missed

No one misses more clear chances than… Erling Haaland.

It's no coincidence that the players who miss the clearest chances are often the ones who score the most goals. It makes sense because their teams allow them to face higher-value chances more frequently, and therefore easier to convert. But this 2023-24 season is...

Driblab continues its business growth with the arrival of new key members

Driblab continues its growth with the arrival of new profiles

Club Atlético Peñarol and Driblab signs partnership agreement

Club Atlético Peñarol and Driblab signs partnership agreement

Driblab

Información corporativa

Somos una empresa con sede en Madrid fundada en 2017 por Salvador Carmona y Cristian Coré Ramiro. Desde nuestros inicios nuestro trabajo se ha centrado en el análisis estadístico de datos para ayudar a los clubes en la planificación deportiva. Somos una consultora big data que ofrece servicios personalizados para cada cliente y defiende un modelo de gestión mixto y una comunicación constante para acompañar el día a día de las instituciones. Nuestro punto fuerte es la más amplia cobertura disponible en número de torneos profesionales y juveniles. Para más detalles, póngase en contacto con nosotros.

Colaboramos con:

           

Hemos aparecido en: