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Think our math is wrong? Prove it.
Every rule is public. The method is a hypothesis we test, not a verdict. If you can show a better rule with evidence, we will change it, and we will credit you by name in the changelog if you agree.
Mathematicians, statisticians and analysts especially welcome. Read the rules first: the math, the backtest plan.
Challenge a ruleShow a better rule with data or a proof. If it holds up, we change the method in a new public version.Correct a numberA minute, a market value, a club, a date. Send the right figure and the source link.Suggest a playerKnow a Salvadoran pro we should rank? Send his name and a link to his profile.
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