Petrov Aleksandr

From Kirov, Russia

EMA: 15990461

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Common russian riichi rating (CRR)

Rating date Feb. 1, 2020 (latest changes Feb. 1, 2020).

155 place (309.09).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.85 * 1 + 3.45 * 1) = 15.55

p1 = (739.13 * 2.50 * 1 + 555.56 * 2.60 * 1 + 0 + 0 + 0) / (2.50 * 1 + 2.60 * 1 + 1 + 1 + 1) = 406.4530864197531

p2 = (739.13 * 2.50 * 1 + 555.56 * 2.60 * 1) / max_coefficients = 211.7215434083601

score = 406.4530864197531 * 0.5 + 211.7215434083601 * 0.5 = 309.0873149140566

Rating changes

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all results
Date Place Points Reason
2020-02-01 155 309.09

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 556 2019-09-08 13/28 100% 2.60 RR And yet the sinner collects tanyao
2 739 2019-03-09 7/24 100% 2.50 RR Toi-Toi-man Tournament