Demosphere vs. Got Soccer for tournament management

[CaliKlines]

YSR sounds like one man's opinion. Anything that is subjective even if accurate is not reproducible. Gotsoccer has a non opinion based model even if it is inaccurate. Does YSR have a published methodology or is it just his "gut." Without actually seeing all of the teams in the country play it's a herculean task at best to come up with anything accurate.

It is far from one man's opinion...it is a fact-based and results-based predictive ranking. It is not perfect, but it is the most accurate.

COMPARE RANKINGS
A ranking systems' accuracy is measured by its "Predictive Power" (how often a higher ranked team beats a lower ranked team). A Predictive Power of 0% is equivalent to flipping a coin. 100% means the rankings always predict the result of a game (impossible given the random nature of the sport). Some ranking systems only rank the top 25 teams in each age group. That is not helpful if you are trying to flight a tournament. "Coverage" is the fraction of all games where both teams are ranked by the ranking system. Here is how the online ranking systems compare today:

ABOUT
This site ranks 79,000 youth soccer teams in the USA based upon the results of 245,000 games played since August 1st 2016. The results come directly from more than 350 different tournament or league websites and are the most accurate and complete set used by any ranking system. The rankings are based solely on team results. Every goal in every game is considered when calculating the ranking of each team. Each team is assigned a score that is measured in goals. To predict the goal difference when two teams play each other simply subtract the score of one team from the score of the other. For example, if Denver Rovers (35.6) plays Parker Stars (33.5) then you can expect Denver Rovers to win by about 2 goals. This works across age groups and even when girls play boys!

The rankings are recalculated almost every day, so please check back often. Teams are only listed if they have played 10 games. Sometimes games are split between duplicate teams. I try to fix as many of those as possible. If you spot anything that looks wrong please drill into the team details and click "Report Errors" (at the top right of the screen).

 

[rainbow_unicorn]

GS rankings are meaningless since they only track a subset of tournaments. However, I do like GS over demosphere since GS shows tournament history of teams.

 

[GunninGopher]

I think most of the Youth Soccer Ranking mistakes are due to managers inconsistently naming teams in tournaments. If they stuck to the same team name for both league and tournaments, there would be fewer problems. Some tournaments mess the names up themselves by bastardizing and combining application entries. It isn't always clear what will end up as the team name sometimes.

The 1 year I managed a team I was told to use Club Region Year Team Coach. For example:
Jumpers FC Calveras G01 Green Twain

Got Soccer shouldn't refer to the score as Rankings. The score is actually a STANDING. That being said, it is nice for tournaments because the team is probably in their system.