Petrov Aleksandr
From Kirov, Russia
EMA: 15990461
Common russian riichi rating (CRR)
Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).
92 place (276.09).
how we calculated rating score
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
Date | Place | Points | Reason |
---|---|---|---|
2021-02-01 | 154 -> 92 | 309.09 -> 276.09 | |
2020-02-01 | 154 | 309.09 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 436 |
|
23/40 | 100% | 2.90 | EMA | Big open chiitoitsu in a small tenpai |
2 | 556 |
|
13/28 | 57% | 2.60 | RR | And yet the sinner collects tanyao |
3 | 739 |
|
7/24 | 14% | 2.50 | RR | Toi-Toi-man Tournament |