Table 1.  Variables studied in the Spanish soccer league 2008-2009.

Group of variables

Variables or game statistics or performance indicators

Variables related to goals scored

Total shots; Shots on goal; Effectiveness 1.

Variables related to offense

Assists; Crosses; Offsides committed; Fouls received; Corners; Ball possession.

Variables related to defence

Crosses against; Offsides received; Fouls committed; Corners against; Yellow cards; Red cards.

Contextual variable

Venue

1Effectiveness=Shots on goal×100 ⁄ Total shots