Ryabov Aleksandr

From Moscow, Russia

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Internal rating (RR)

Rating date Sept. 1, 2023 (latest changes Sept. 1, 2023).

74 place (304.86).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 3.50 * 0.57) = 12.842815

p1 = (594.59 * 4.05 * 0.71 + 436.78 * 3.75 * 1 + 0 + 0 + 0) / (4.05 * 0.71 + 3.75 * 1 + 1 + 1 + 1) = 348.23909575061066

p2 = (594.59 * 4.05 * 0.71 + 436.78 * 3.75 * 1) / max_coefficients = 261.4722706820896

score = 348.23909575061066 * 0.5 + 261.4722706820896 * 0.5 = 304.85568321635014

Rating changes

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all results
Date Place Points Reason
2023-09-01 74 304.86

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 437 2023-06-11 50/88 100% 3.75 RR Money can not buy tenpai Perm
2 595 2022-06-12 46/112 71% 4.05 RR Moscow Riichi 2022 Moscow