An Opta based performance rating is a great guide to see how well a player is performing over the course of a season but is not a good tool if you want to compare players performances.

The performance rating is a total accrued from all appearances the player has made, so how to compare the performance of a player who has made 30 appearances to one who has just 2 or 3 under his belt?

To do this I have taken the players Opta based rating, divided it by the number of minutes each player has played and then multiplied this total by 90, giving me a performance rating average over 90 minutes of play.

As an example lets use Dani Ayala and Dael Fry. Ayala has a performance rating of 817 for the season and Fry just 54, however Ayala has made 30 appearances to accrue his score where Fry has had just two.

Ayala – Rating 817 – 2,375 mins

Fry – Rating 54 – 180 mins

Taking Ayala’s 817 and dividing by 2,375 gives a rating per minute, multiply this by 90 and you have a performance over 90 mins.

Ayala 30.96

Fry 27.00

An average expected performance of a player would be a score of between 10 and 20.

I have worked out the performance per 90 minutes of each Middlesbrough player, with some surprising results as well as expected ones and placed them into Four categories.

Below is a table of the 90 minute Opta based performance ratings, which makes completely different reading to the season total performances…


39.06 Adam Forshaw

37.26 Dimi Konstantopoulos

31.66 Ritchie de Laet

30.96 Dani Ayala


28.99 Tomas Kalas

27.82 George Friend

27.06 Ben Gibson

27.00 Dael Fry

26.12 Emilio Nsue

24.68 Jordan Rhodes

22.98 Adam Clayton

21.73 Grant Leadbitter

21.06 Stewart Downing


18.41 Albert Adomah

13.35 Cristhian Stuani


8.66 David Nugent

-2.36 Gaston Ramirez

-2.97 Carlos de Pena

-3.52 Kike Sola


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