Castrol Index FAQs

1)    What is the Castrol Index?

The Castrol Index is the Official Performance Index of Major League Soccer and uses the latest technology to objectively analyze player performance to help you see soccer from a completely different perspective.

2)    How is the Castrol Index calculated?

The Castrol Index tracks every move on the field and assesses whether it has a positive or negative impact on a team’s ability to score or concede a goal.

A key factor for all areas of performance in the Castrol Index is in which zone on the pitch the action takes place. Players receive points for each successful pass they complete, but the number of points awarded depends on which zones the ball is passed from and received in. Similarly, misplaced or intercepted passes are penalised depending on how much trouble the mistake is likely to land the team in.

The Castrol Index is also able to split up the rewards of a goal between penalising the goalkeeper for letting in a shot he should have saved and rewarding the attacker for scoring a goal. The number of Castrol Index points awarded for tackles, interceptions and blocked shots also depends on which zone they are made. Successfully taking the ball from a striker near the penalty spot will earn more points than a tackle out on the wing. Conceding free kicks and penalties will result in deductions.

3)    Where does the data come from that powers the Castrol Index?

Castrol uses the latest technology, working with the MLS and OPTA to log an average of 1,800 player movements per match. Castrol's team of performance analysts then crunch all the data and award each player a Castrol Index score out of 1,000 - the higher the score the better the player's performance.

4)    Which players and matches does the MLS Castrol Index cover?

Every match in the 2014 MLS season.

5)    How often will the Castrol Index be updated?

The Castrol Index will be update in the first week of each month and will be made available month via and

6)    Are there a minimum number of minutes a player has to play to be ranked in the Castrol Index?

All players are ranked irrespective of how many minutes they have played in the season.

Those who have not played a specified amount of minutes each month (equal to approx 60% of season game time) will have their Castrol Index score divided by that amount of minutes, therefore penalising players who are either injured, not selected or suspended for a considerable period of time.

7)    Surely the player who plays the most games will top the Castrol Index?

No, the Castrol Index is calculated on a per 90 minute score, measuring the quality of each player performance rather than the number of games played.

8)    Are winning goals worth more than other goals?

No, all goals scored are of equal value.