SEBA Projections

SEBA Projections through July 31

Welcome to the Statistical Extrapolation Bayesian Analyzer Projection System, which is, of course, a tortured gathering of words used to form the SEBA Projection System.

The system consists of a model projecting the probabilities of game results and then a barrage of simulations which account for the remaining luck. So the probabilities you see below show, essentially, what the odds are of an outcome if the team continues to play like it has been.

Below are the current season forecasts using data from MLS games through July 31, 2016.

Power Rankings

The “Power Rankings” we concoct are the actual “strength” of the team according to competitive expectations. They are computed showing average expected points result if every team in MLS played every team both home and away.

SEBA has the Union dropping 4 ranks from No. 4 to No. 8. ESPN has the Union down 1 at No. 13. SI has them drop 3 to No. 11. has them drop 4 to No. 10. Soccer America has them drop 3 to No. 13.


Playoffs probability and more

The following charts show the probabilities for making the playoffs, winning the Supporters’ Shield, winning the MLS Cup, winning the USOC Cup, and qualification for CONCACAF Champions League.

The Union went painfully down to 81.9% from 89.3% last week in their probability of making the playoffs.


Philadelphia fell further to 0.2% from 0.8% in their odds of claiming the Shield.


The Union dropped again from 6.5% last week to 4.4% in their odds of capturing the MLS Cup.


Philadelphia was eliminated from the US Open Cup.


The below shows how the model rates each U.S. league & conference compared to one another. This is based on an all vs. all assessment rather than a top vs. top assessment. MLS is clearly rated as superior to either NASL or USL. USL has a slight edge over NASL. This also shows the MLS-West outperforming MLS-East and USL-East slightly outperforming USL-West.


*I found an error where, somehow, MLS Runner Up was still counting towards CCL qualification. It has been fixed and reflected both here and in the over-time-graphs.

Philadelphia’s probability of qualifying for the CCL plummeted again from 21.5% to 11.8%. The Union’s probability of winning the conference keeps declining which leaves only the MLS Cup for qualification.


Philadelphia finishing

The following shows the probability of various playoff categories and Philadelphia’s probability of each of them.


The following is a “density” chart showing the relative probability of Philadelphia finishing at the different after-playoffs rankings from 1 to 20.


The following is the list of Philadelphia’s remaining scheduled matches accompanied by result probabilities as predicted by SEBA.


The charts below shows the average results of all the simulations and the probabilities associated with all of the above. The chart is broken up into two parts in order to better fit on your screen.

(Note: CCLAlternate refers to qualifying for CONCACAF Champions League non-traditionally. U.S. teams qualify by winning the MLS Cup, winning the Supporters’ Shield, winning the Conference in the regular season, and by winning the U.S. Open Cup. If a Canadian team wins any of these or a U.S. team wins more than one, the extra slots are filled by top regular season performers.) (Also, “regSeasFinish” refers to finishing the conference in first place AND not winning other CCL slots like MLSCup, Supporters’ Shield, and USOC)



Changes Over Time

This chart shows how Philadelphia’s chances at each of the outcomes has evolved over the course of the season.


This shows the evolution of Philadelphia’s movement within SEBA and other media outlets’ power rankings.


This shows the MLS Eastern Conference’s evolution of power rankings for SEBA throughout the season.



It should be noted that, with both of these tables, it shows the odds of breaking MLS single-season records, not of holding them. If more than one team would break the same record this season, they would both be represented below.

The following table shows Philadelphia’s odds at breaking various MLS single-season records


The following table shows all single-season records that had at least one simulation break the record. However, it limits the records to show only the most probable team for breaking each record.


USL Projections

Bethlehem decreased to 20th from 19th and Harrisburg City Islanders remained at 24th.‘s top 10 rankings do not include either team.


Bethlehem’s probability of making the playoffs plummeted further down from 39.9% to 22.0%. Harrisburg City’s decreased to 2.3% from 4.2%.


Both Bethlehem and Harrisburg City have no chance of winning the USL regular season title.


Bethlehem’s probability of winning the USL Championship decreased from 1.2% to 0.7%. Harrisburg City’s chances decreased back to negligible from 0.1%.




As with MLS, the below density charts show the relative probabilities of Bethlehem and Harrisburg finishing for their final playoff-rank.



The following are the upcoming matches and associated probabilities for Bethlehem and Harrisburg City.



The following tables show the average simulation results. They are divided into two tables to present better to your screen.



Changes Over Time

Below shows the probabilities of various outcomes for Bethlehem over the course of the season.


Below shows the probabilities of various outcomes for Harrisburg over the course of the season.


Below shows the evolution of SEBA’s power rankings for Bethlehem Steel FC and the Harrisburg City Islanders.


Below shows SEBA’s power rankings evolution for the USL East over the course of the season


NWSL Projections




The following tables are the average simulation results produced by SEBA.






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