Our Effective Player Index algorithm converts Event Data into powerful insights and evaluates every action on the pitch according to their importance. Based on the experience of over 120.000 matches, we divide our ratings into 20 different categories and normalize them to a value between 0 and 10.
​
We provide a set of general ratings, for overall performance, stability, offensive performance and defensive performance. These are presented with three-piece bar charts that give you information about the player (left wide bar), the competition average (grey texture in the middle), and the competition benchmark player (on the right hand side in dark green) in that performance category.

The player’s season rating. This is the average of all his single ratings for games he played. Please be aware that ratings based on a few short games may be more volatile than ratings based on many matches of 90 minutes. A single rating is given by the offensive and defensive gains/losses during a match.

The stability rating gives a measure of how much the player’s single performance deviate from his rating. A 10 would be the most stable player on his position, a 0 the most unstable one in the data set. However, this alone is no indication of a player's quality. Since position-dependent standardisation is used, a striker with a rating of 5 can actually fluctuate more in his performance than a central defender with a rating of 5, where stable performances are more common.

All defensive (offensive) gains and losses broken down later for each performance category represent a defensive (offensive) rating.

These perfomance categories could be considered reactive, where the player is not in immediate control of the ball yet. 

TACKLE DEFENSIVE: Tackle rating based on those events, when the player is not in control of the ball and attempts to win the ball from an opposing player on the ground. This describes the volume, importance and success of a player’s tackle attempts in positions that are of varying value in defensive considerations.

TACKLE OFFENSIVE: This describes the volume, importance and success of a player's tackle attempts in positions that are of varying in offensive considerations.

INTERCEPT DEFENSIVE: Rating based on the defensive value of player intercepting the ball during an opponent’s pass with a distance of at least 1m to the pass giver.

INTERCEPT OFFENSIVE: This rating is based on the offensive value of an intercept. Please note that offensive here is in relation to the implicit offensive value of a position when the player intercepts the ball.

AERIAL OFFENSIVE: Aerial Offensive rating describes the players volume and success in winning aerial duels in positions that are potentially valuable in offensive considerations. Offensive here does not describe ball possession prior to the aerial event but the offensive value of the position where the aerial duel happens.

AERIAL DEFENSIVE: Aerial Defensive rating describes the player’s volume and success in winning aerial duels in position of varying defensive importance. This does not describe ball possession prior to the aerial event.

BLOCKED PASS: This describes the volume and importance of those events when a defending player blocks an attempted pass close to the opposing player looking to deliver a pass. The defender is spaced in a way that he would be considered too far away for a tackle, and too close to consider his action an intercept.

BLOCKED SHOTS: This describes the volume and importance of those events when a defending player blocked a shot at goal from an opposing player.

These performance categories could be considerd proactive, where the player is in control of the ball and trying to implement something on the pitch.

TAKE-ON: The take-on rating describes the volume, success and importance of the player beating a defending player by dribbling past him with the ball at his feet.

CROSSING: The crossing rating describes the volume, success and importance of the player’s crosses.

PASS SHORT: The short passes rating describes the volume, success and importance of the player’s passes with a length below 32 meters. This category could be considered an indicator of a player's build-up play, as it consits of the difference in value between where a player plays his passes from versus the value of the positions thoses passes end up at.

PASS LONG: The long passes rating describes the volume, success and importance of the player’s passes with a length of more than 32 meters.

DELIVERY: This describes the sum and quality of the positions, where the player’s passes have been successfully received. The standard pass rating is based on the difference of value from where player passes to where it is received, while DELIVERY only concerns itself with the value of the end points. This can be considered an indicator of how dangerous the player's passes are higher up the pitch.

RECEPTION: This is the counter part to DELIVERY, and describes the sum and quality of the positions where a player has successfully received a pass. In general, positions higher-up the pitch and central are worth more.

FINISHING: The finishing rating describes the player’s efficiency in front of goal. This is not the same as a simple success ratio in terms of goals versus shots, but looks at what kind of positional value the player gave on missed attempts versus what his goals have been worth. Players with the same number of shots and goals can have different finishing ratings, depending on the position they’ve taken their shots from and which of thoses have been successful.

SHOTS: The shots rating describes the sum and quality of the positions the player has taken his shots from.
​