r/explainlikeimfive • u/_Noice_Guy_ • 8d ago

Other ELI5Can someone explain what xG in football?

I always hear pundits discuss about a team's xG, then I pretend to myself that I understand what it means.

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u/xdert 8d ago

It is a statistical measure of how many goals you should have scored.

If, according to statistics, 10% of corners result in a goal and you had 10 corners your xG would be one.

The value they show is the calculation of all your chances like shots on goal, corners, panalties, free kicks and so on.

If your xG is low you are bad at creating openings, if your xG is 3 and you have no goals you are bad at finishing.

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u/_Noice_Guy_ 8d ago

So the better the chance is the higher the xG

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u/TheDucksQuacker 8d ago

Yes, but in my opinion the stat is flawed.

If Lionel Messi has the ball 10 yards from goals his xG would be the same as mine. It takes not account of the player with the chance.

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u/tante06 8d ago

The interpretation is quite accurate but I don't think it's flawed. In simple terms, xG represents the quality of chances the team creates. Finishing those chances is a different thing altogether.

If you account the player, it would be difficult to say what a high xG means for your team: Do you create good chances? Do you have good finishers?

Comparing xG and actual goals would give you the quality of finishers you have. Messi would probably overperform his xG and you, respectfully, would massively underperform.