Unverified50% confidenceFactExact time
ELO积分系统最初由Arpad Elo于1960年代为国际象棋设计，A战胜B的期望概率公式为E_A = 1 / (1 + 10^((Rb-Ra)/400))
1
Sources
50%
Confidence
Long-term
Relevance
7/23/2026
First Seen
Sources
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