Expected goals per shot explained: measuring shot quality
What expected goals per shot means, how it separates good chances from many bad ones, why it reveals a team's shooting approach, and how to read it.
The idea in one sentence
Expected goals per shot measures the average quality of the shots a team or player takes. It is found by dividing total expected goals by the number of shots, giving the typical value of each attempt. A high figure means a side is getting good, high-probability chances; a low one means it is taking a lot of difficult, long-range or low-percentage shots. It answers not how much a team shoots, but how good those shots are.
Quality versus quantity
Two teams can generate the same total expected goals in very different ways. One might take a small number of excellent chances, while the other fires off many speculative efforts from distance. Their totals look alike, but their expected goals per shot are very different. This distinction matters, because a team built on high-quality chances is usually creating better openings than one relying on volume, even if the overall xG is similar.
What it reveals about a team
Expected goals per shot exposes a team's shooting approach. A patient side that works the ball into the box for clear chances will post a high value, while a team that shoots on sight from range will post a low one. Neither is automatically right, but the number reveals the style and can flag a problem: a team taking many low-quality shots may be forcing the issue rather than creating genuine openings against a stubborn defence.
How to read it sensibly
The measure is best read alongside the number of shots and the total xG, since each tells part of the story. A high value on very few shots may just mean a team rarely gets forward; a low value on many shots may still add up to plenty of xG. As always, it is more reliable over a run of matches, and it should be used to describe how a team creates, rather than as a single verdict on how good it is.
Where you will see it
Expected goals per shot appears in match and season analysis whenever the discussion turns from how often a team shoots to how good its chances are. It helps explain why a team with plenty of shots is not scoring, or why a side that shoots rarely is still dangerous. For anyone judging the quality behind the quantity, it is one of the simplest and most useful ways to look at a team's attacking output.