Formula XI: A Framework

Wednesday, June 02, 2010 | View Comments
Oguchi Onyewu


Disclaimer: This post is exceedingly boring and only necessary because I still live by the rules of my high school math teachers; I show my work. If you have no interest in how I created the statistics that I’ll be analyzing tomorrow, feel free to skip this post and rejoin the series tomorrow. For those of you nerdy or bored enough to read this, thanks.

The first two posts in this series looked at the US’ place in the world, a growing second tier nation that struggles against top tier teams. To delve further than this requires looking at the players that comprise this team and similar teams around the world. As I said in the first post of this series, rankings are an impossible thing. This is doubly true when we move to the thought of rating individual players in a team sport. However, to really understand the current state of US soccer, it is a necessary endeavor.

Because most rating systems of individual players would require either a completely subjective rating or a PhD in mathematics and a QB-rating-like statistical formula, I am opting for a disaggregation-reaggregation concept. The theory behind this rating is that club success is dependent on aggregate individual success. By rating a club on its current successes and assigning the club’s success level to the players responsible for it, a rating for each player can be obtained.

The rating used starts at 10 and works its way down. In this rating, individual clubs are assigned a rating based on their best performance either in international club tournaments or league play. This rating is then assigned to each of the starters and regular subs of the club. Bench players are assigned a rating of two less than the club rating except for those bench players playing on a UEFA Champions League knockout round club. These players are assigned a rating of one less than the club rating.

While there is a level of error introduced by assigning the same rating to every starter on a club, the competitive transfer market in global football keeps this level of error relatively low. Because clubs, unlike national teams, can address positional deficiencies in the open market, the quality difference among the starters should be relatively small. A standout player on a “7” club, will be bought by a “9” or “10” club.

For space and usefulness, I’ve included only the ways for a club to be at least a “6”. The assignment of ratings are the result of way too much of my free time studying international results and player transfers. These ratings are not perfect (an underdog making a deep run in a tournament can overrate its players) and by virtue of the data type the ratings cannot be tested for significance. However, it will allow an analysis of what national teams look like from a “talent” perspective.

Tournaments

Sports News - May 31, 2010


The international tournaments offer the best opportunity to judge teams from different countries against each other. The interplay between the UEFA Champions League and the Europa League makes is relatively easy to determine where to break one rating level from another. The other competitions are a little harder to set break points because they are dominated more by individual nations. The best example of this is the Mexican domination of the CONCACAF Champions League. It would be difficult to claim that the quarterfinal losers belong in the same category as the quarterfinal winners. To a lesser extent, CONMEBOL, CAF, and AFC all suffer similar issues. The one thing that the Club World Cup results have shown in the last few years is that UEFA rules the club world, CONMEBOL is comfortably in second, and the top team from the other three confederations are all about equal. Below is a table showing the rankings for clubs in international tournaments.

RatingUEFACONMEBOLCONCACAFCAFAFC
10CL KO



9EL KOCLi QF


8CL GP4
EL GP
CLi KO
CLi GP3
CS SF
CL SFCL SFCL SF
7EL POCLi GP4
CLi R1
CS R2
CL QF
CL GP
Cup SF
CL KO
6CL R2
EL R3
CS R1CL GPCL R2
Cup GP
CL GP
Cup SF

Competition AbbreviationsRound Abbreviations
CL = Champion's League
EL = Europa League
CLi = Copa Libertadores
CS = Copa Sudamericana
SF = Semifinalist
QF = Quarterfinalist
KO = Knockout Stage Participant
GP = Group Stage Participant
GPx = x Place in Group
(i.e. GP3 = 3rd place in group)
PO = Playoff Stage Participant
Rx = x Round Participant
(i.e. R2 = 2nd Round Participant)


Leagues

Sports News - May 16, 2010


Aggregating individual club success in international tournaments for each countries gives an approximate view of the relative strength of the domestic league. Except for MLS, each country’s top division is divided into thirds, with the top third rated at the highest number, the middle third rated at the middle number, and the bottom third rated at the lowest number. For league sizes not divisible by three, the following patterns were followed, 20 teams: 6-8-6, 16 teams: 5-6-5, 14 teams: 4-6-4. MLS is split into two because the league structure shrinks the difference between the top and bottom teams. For a country’s second division a 25%-50%-25% ratio is used with the top quarter of the second division of equal rating as the bottom third of the top division. For the big four, this means second divisions of 7-6-5.

RatingsUEFACONMEBOLCONCACAFCAFAFC
9-8-7England
Spain
Italy
Germany




8-7-6France
Russia
Ukraine
Romania
Portugal
Brazil


7-6-5Netherlands
Turkey
Greece
Belgium
Switzerland
Denmark
Argentina
Uruguay
Mexico

6-5

MLS

6-5-4Scotland
Bulgaria
Czech Republic
Norway
Austria
Serbia
Israel
Cyprus
Sweden
Slovakia
Poland
Croatia
Belarus
Colombia
Venezuela
Ecuador
Chile
Paraguay
Peru
Bolivia
Costa Rica
Honduras
Egypt
Tunisia
Japan
South Korea


For clubs in international play, their final rating is the higher of their international tournament rating and their league rating. Thus, for Rangers, they would be an “8” even though their position in the Scottish Premier League would make them a “6”.

For a player who has been with multiple clubs during a season, the higher rating for the player will be used. In Landon Donovan’s case, this would make him a “9” as he played in the Europa League Knockout Stage with Everton. Interestingly, he was a “9” the year before as well sitting on the bench for a Champions League Knockout Stage club.

By assigning the club rating to individual players and averaging those ratings for starting lineups for each country’s national team, a reasonable representation can be made of the nation’s underlying on-field talent. Tomorrow, we’ll look at what that data says about the US compared to the world.
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