Chess Elo – Table of Winning Probability

Table of Winning Probability

Rating Difference Stronger Player Weaker Player Home
0 0.50 0.50
25 0.53 0.47 Home
50 0.57 0.43
100 0.64 0.36 Home
150 0.70 0.30
200 0.76 0.24
250 0.81 0.19
300 0.85 0.15
350 0.89 0.11
400 (FIDE) 0.92 0.08
450 0.94 0.06
500 0.96 0.04
735 0.99 0.01
Over 735 1.00 0.00
Note: Simplified. FIDE Handbook contains the original FIDE Table.
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