xG measures the quality of the chances a team or player creates. Each shot receives a value based on factors such as its location, angle and type of attacking move. Adding those values gives the number of goals an average finisher would be expected to score from those chances.

xG helps separate a genuinely dangerous team from one that has simply finished well over a small sample. It describes attacking production more clearly than goals alone and provides a strong foundation for analysing form, clean sheets, Both Teams to Score and goal totals.

A team takes 12 shots but most come from difficult positions and the total reaches only 0.8 xG. The shot count is high, but the chances were not especially dangerous.