When Box Scores Say Little Without Minutes

Efficiency numbers are the backbone of modern basketball analysis. They measure points scored and allowed per hundred possessions, which removes most of the distortion caused by differences in tempo.

Per hundred possessions

If a team scores a certain number of points on a hundred possessions, that is its offensive rating; the same logic applies to defence. The difference between the two is the net rating. It is a compact summary of how a team performs when the game is stripped of tempo.

For readers comparing sources, the 22Casino website offers an example of a simple table of team ratings. Check the definition used, because possession estimates differ slightly.

What ratings leave out

A rating built on a few games is unstable. A hot shooting week lifts it, a cold one lowers it. Schedule strength matters too, because a team that has faced weak opponents can look better than it is. Over a full season the noise shrinks, but it never vanishes.

It also helps to look at the components. Is the offence strong because of shooting, ball security, rebounding or free throws? Each has its own stability. Turnovers and rebounding tend to be steadier than hot or cold shooting, and that distinction is useful when judging a short run of games.

Lineup changes can move a rating overnight. If a starting centre is absent for several games, the defensive rating of the whole team may drift, and the season figure will blur two different teams into one. Splitting the season at the date of the change, and noting how many games lie on each side, gives a more honest picture than a single average.

A short note on money: when a wager is involved, the amount should be fixed before the start and never raised during it. Ratings summarise the past, so treat them as a summary and not as a promise. Take regular breaks, whatever the screen shows.

A single efficiency figure is a good starting point and a poor stopping point. At the end of the day statistics are a tool for seeing the game more clearly, not a promise about what comes next. Keep that distinction in mind.