SEBA Projections

Updated SEBA Projections through August 14th

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 August 14, 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 improving t0 No. 6 from No. 8. ESPN had another mood swing and has the Union up 6 spots to No. 8 from No. 14. Soccer America has the Union up one spot to No. 12 from No. 13. SI has them move up 3 spots to No. 7 from No. 10.


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 up to 96.6% from 87.5% last week in their probability of making the playoffs.


Philadelphia improved their meager odds to 0.6% from 0.1% in their odds of claiming the Shield.


The Union increased from 4.1% last week to 6.2% in their odds of capturing the MLS Cup.


Philadelphia is eliminated from the US Open Cup. It is now down to just Dallas and New England.


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.


Philadelphia’s probability of qualifying for the CCL increased substantially from 9.6% to 19.7%. This is due to the Union’s better odds of claiming the regular season eastern conference title.


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.



This 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.

*Philadelphia did not break any single-season records in any of the 15,000 simulations

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 25th from 22nd and the Harrisburg City Islanders increased to 24th from 25th.‘s top 10 rankings do not include either team.


Bethlehem’s probability of making the playoffs declined again from 14.7% to 10.5%. Harrisburg City’s increased to 1.5% from 0.5%.


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 0.5% to 0.3%. Harrisburg City’s chances are still negligible.




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.






One Comment

  1. I’ll be at the Toronto game in September. That definitely bumps the Win percentage from 19.3% to at least 20.3%.

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