Finishing Skill
Finishing skill is the hypothesis that a persistent, repeatable difference exists between some players' goals and the expected goals of the chances they take.
What it means
The evidence is real but modest: the season-to-season repeatability of a player's conversion residual is weak to moderate, and it takes several hundred attempts to separate from chance.
Why it matters
It is the central contested question of goalscoring analysis, and the answer determines whether a season of overperformance should be treated as luck, selection or ability.
Where it is used
Player evaluation and recruitment, where the difference between a lucky season and a genuine skill is commercially significant.
Where it misleads
Most public claims about finishing skill rest on samples far too small to support them, and the residual also contains shot selection and team effects that have nothing to do with finishing.
Key points
- Repeatability is weak to moderate even over long careers.
- Several hundred attempts are needed to separate skill from chance.
- Shot selection can raise conversion without any finishing skill.
- Team structure can produce persistent overperformance.
- Always report the number of attempts behind the claim.
- The residual is a question, not an answer.
Report the definition, the sample and the date beside the figure, and the figure will survive being quoted by somebody else.