The overlap run that never gets the ball does the work

A fullback sprinting past a winger is usually a decoy, and judging him by how often he receives it misses the point.

Count the overlaps in a match, then count how many end with the fullback actually receiving a pass. The ratio is bad. It is supposed to be bad. The run exists to make a defender choose, and once the defender has chosen, the run has paid for itself whether or not the ball goes anywhere near it.

Here is the mechanism. A winger takes the ball on the touchline with a fullback marking him. If nobody runs beyond, the defender can jockey, stay tight and force him backwards, because there is no threat behind. Now send an overlapping fullback outside him. The defender has half a second to decide whether to follow the runner or hold the winger. Either choice creates something. Follow, and the winger cuts inside into space. Hold, and the runner is free down the line. The defender is not beaten by skill. He is beaten by arithmetic.

Which is why the underlap versus overlap argument, as usually conducted, is slightly silly. They are not rival philosophies. They are answers to what the defence is doing. Against a back four that stays narrow and shuffles, the run outside is free. Against a side that shows you the touchline deliberately and protects the inside, going outside is running into a trap, and the underlap through the gap between fullback and centre back is the only run worth making.

The part coached badly is timing. An overlap that starts too early lets the defender pass the runner on to a covering midfielder and the whole thing dissolves. It should begin roughly when the winger takes his first touch inside, because that is the instant the defender's eyes go down. Players who get this right are described as having good engines. Mostly they have good clocks.

Tracking data does not help here and I would say it actively misleads. Distance covered at high speed rewards the fullback who makes forty pointless runs. What you want is a count of runs that forced a defensive decision, and that requires somebody to watch the defender rather than the runner.

Judge the run by the space it opened, not the pass it received. The rest is bookkeeping.