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ELO Rating
Strength Ranking
What it is
Ranking system adapted from chess. Rises with wins (more against strong opponents) and falls with losses. Represents 'true strength' regardless of league. Reference: >2000 = World elite | 1800-2000 = Very good | 1600-1800 = Average.
Formula
New ELO = Current ELO + K × (Result - Expected probability) | K = 32 (football standard)
Real Example
Real Madrid ELO: ~2100 | Osasuna: ~1720 | Difference 380 pts → 85% statistical probability of Real Madrid winning.
When to Use
Compare teams from different leagues; spot teams whose ELO does not match their current table position.