Robbie

Like xG but only for shots that actually hit the target. It measures how good the shot was, not just the chance. A weak shot straight at the keeper from a great position has high xG but low xGOT. A rocket into the top corner from 25 yards has low xG but high xGOT. Useful for evaluating keepers - if they're conceding more than xGOT, they're underperforming.

A visual showing where a player spends their time on the pitch, with warmer colors (red, orange) indicating more activity. Heat maps reveal actual positioning versus nominal position - a "winger" whose heat map is entirely central isn't playing like a winger. They show work rate, defensive contribution, and where a player's influence is concentrated.

Creating numerical advantage in a specific area of the pitch. Three attackers against two defenders is an overload. You move players into zones to outnumber the opposition, then exploit the spare man. Guardiola teams overload the half-spaces constantly; wide overloads involve full-backs and wingers combining; central overloads pack the middle of the pitch. The spare man should always be free if you work the ball quickly enough.

An unbroken chain of passes before the ball is lost. Sequences can be long (tiki-taka style) or short (direct football). Teams are judged on how many long sequences they produce and what they do with them. A 15-pass sequence that ends with a sideways ball is different from one that ends with a shot. The quality of the sequence's endpoint matters as much as the length.

The creative midfielder who runs the game, creates chances, and controls tempo. Classic number 10s like Maradona and Zidane played between midfield and attack. Deep-lying playmakers like Pirlo and Xavi do similar things from further back. Pure playmakers are rarer now because teams spread creative duties around instead of relying on one player. But the role still gets romanticized as football at its most artistic.