Petrov Aleksandr

From Kirov, Russia

EMA: 15990461

Player page

Common russian riichi rating (CRR)

Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).

93 place (276.09).

max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645

p1 = (739.13 * 2.50 * 0.14 + 555.56 * 2.60 * 0.57 + 435.90 * 2.90 * 1 + 0 + 0) / (2.50 * 0.14 + 2.60 * 0.57 + 2.90 * 1 + 1 + 1) = 349.0357991899616

p2 = (435.90 * 2.90 * 1 + 555.56 * 2.60 * 0.57 + 739.13 * 2.50 * 0.14) / max_coefficients = 203.14017907505368

score = 349.0357991899616 * 0.5 + 203.14017907505368 * 0.5 = 276.08798913250763

Rating changes

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all results
Date Place Points Reason
2021-02-01 155 -> 93 309.09 -> 276.09
2020-02-01 155 309.09

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 436 2020-03-08 23/40 100% 2.90 EMA Big open chiitoitsu in a small tenpai
2 556 2019-09-08 13/28 57% 2.60 RR And yet the sinner collects tanyao
3 739 2019-03-09 7/24 14% 2.50 RR Toi-Toi-man Tournament