expected goals (xG)

Syllable breakdown

Dictionary meaning

a statistical metric in football (soccer) analytics that quantifies the quality of a goal-scoring opportunity based on factors including the shot's location, angle, and distance from goal, the type of assist, and the game situation, assigning each shot a probability between 0 and 1 representing the likelihood that an average player would score from that position; xG enables analysts to evaluate whether teams and players are creating high-quality chances and finishing them at expected rates, providing a more reliable basis for performance assessment than raw goal counts, which are subject to luck and finishing variance; developed from spatial shot data collected by companies including Opta and StatsBomb, xG has transformed football broadcasting, scouting, and tactical analysis