MLS Salaries 2007-2019
Every season since 2007, the Major League Soccer Players Association ("MLSPA") has published a report containing the salaries of every player in the League. Those reports can be found here.
I created a Shiny App to allow users to explore the data in those reports.
The Data Tab contains a table with all of the data from the MLSPA:
The data can be filtered by club, season, and position.
By Season Tab
The By Season Tab examines player salaries across seasons.
The By Seasons Tab includes two sub-tabs: 2007-2019 Boxplots and Season vs Season Histograms.
On top of the 2007-2019 Boxplots Sub-Tab is a boxplot that shows each season's distribution of player salaries. That is, for each season, the chart shows the distribution of the Annualized Average Guaranteed Compensation for every player on every club during that season.
Below that boxplot, I have included what is essentially a zoomed-in image of the lower region of the boxplot on top:
Not surprisingly, salaries at all levels have increased since 2007.
These charts also demonstrate the impact of collective bargaining on salaries. The League and the MLSPA reached a new collective bargaining agreement ("CBA") in 2015 that ran through the 2019 season. Focusing on these last five seasons, while the median salary has increased since 2014, most of the salary gains have come in 50th-percentile-to-75-percentile quartile. In 2014, a player in the 75th percentile made approximately $180,000 per season. By 2019, a player in the 75th percentile made approximately $500,000, more than two-and-one-half times the 2014 figure. Also in the 2015 CBA, the League introduced Targeted Allocation Money ("TAM"). Because TAM may only be used on players earning between approximately $450,000 and $1,500,000, clubs are incentivized to retain players in that salary band. Accordingly, since 2014, the number of players earning between $450,000 and $1,500,000 has risen from 17 to 161. (Note that the methodology the League uses to determine a player's salary for purposes of TAM eligibility is slightly different than the methodology that the MLSPA uses to calculate a player's Annualized Average Guaranteed Compensation.)
The Season vs Season Histograms Sub-Tab includes histograms of two seasons of the user's choice. Salaries above $1,000,000 are grouped together in a final bin.
By Position Tab
The By Position Tab compares player salaries across positions. The user can filter the data by club and season.
Surprisingly, between 2007 and 2009, clubs were actually paying more for midfielders than they were for strikers:
Those figures are, however, influenced by David Beckham's $6,500,000 Annualized Average Guaranteed Compensation (more than double anyone else in the League during that period). By 2019, clubs had settled in to the pattern of paying strikers more than midfielders, midfielders more than defenders, and defenders more than goalkeepers:
By Club Tab
The By Club Tab allows the user to explore how different clubs compose their squads. The user selects two clubs during particular seasons (i.e., the user can choose to compare the New York Red Bulls 2019 to the New York Red Bulls 2018). Below the user's selections are boxplots showing the distribution of player salaries on that club during that season:
Then, below those boxplots, are zoomed-in images of the lower regions of the boxplots on top, just as on the By Season Tab:
Points By Club Spend Tab
The last tab on the App examines whether there is a relationship between the amount of money a club spends on player salaries in a season and how many points that club gained during that season. The scatterplot on top shows the points per match a club picked up during a season compared to how much money the club spent on player salaries during that season:
However, because salaries increased from 2007 to 2019, before performing a linear regression on the data, I performed a logarithmic transformation of the club season salary total. Following that transformation, I replotted the data and performed a linear regression:
Somewhat surprisingly, there was very little correlation between how much money a club spent on player salaries and the points that club gained during the season.
Hopefully this App provides a means for you to explore the available salary data and draw some additional conclusions of your own.