The Castrol performance index is a ranking system created by Castrol for men's club association football as part of a sponsorship package with FIFA. The system uses mathematical formulas which evaluate various player performance in terms of how individual actions either assist or prevent goals. The system takes into account the strength of the opposition and the time in a game the player's actions occurred.
Castrol publishes several rankings: players in top five European leagues monthly during a season, MLS player ranking and international tournament rankings. Castrol became the official oil lubricant of FIFA in 2008. It published a ranking in UEFA Euro 2008. It was an official sponsor the 2010 FIFA World Cup in South Africa and an index measuring World Cup player performance was updated after each round of matches.[1] Castrol made a ranking in Euro 2012[2] and the 2013 FIFA Confederations Cup.[3]