Petrov Aleksandr

From Kirov, Russia

EMA: 15990461

Player page

Internal rating (RR)

Rating date March 21, 2021 (latest changes March 21, 2021).

93 place (212.79).

max_coefficients = (4.05 * 0.71 + 2.90 * 0.86 + 3.45 * 0.71 + 2.70 * 0.86) = 10.15701

p1 = (555.56 * 2.60 * 0.43 + 435.90 * 2.90 * 0.86 + 0 + 0 + 0) / (2.60 * 0.43 + 2.90 * 0.86 + 1 + 1 + 1) = 257.9640754854204

p2 = (435.90 * 2.90 * 0.86 + 555.56 * 2.60 * 0.43) / max_coefficients = 167.62314893851638

score = 257.9640754854204 * 0.5 + 167.62314893851638 * 0.5 = 212.79361221196837

Rating changes

Show

Date Place Points Reason
2021-03-17 94 -> 93 212.79
2021-03-08 80 -> 94 285.83 -> 212.79

Big open chiitoitsu in a small tenpai: 100% -> 86%

And yet the sinner collects tanyao: 57% -> 43%

2021-03-04 82 -> 80 281.42 -> 285.83
2021-02-25 83 -> 82 281.42
2021-02-15 86 -> 83 276.09 -> 281.42
2021-02-10 87 -> 86 276.09
2021-01-26 87 274.06 -> 276.09
2021-01-24 87 271.95 -> 274.06
2021-01-13 90 -> 87 271.95
2021-01-09 85 -> 90 292.68 -> 271.95

Toi-Toi-man Tournament: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 436 2020-03-08 23/40 86% 2.90 EMA Big open chiitoitsu in a small tenpai
2 556 2019-09-08 13/28 43% 2.60 RR And yet the sinner collects tanyao
3 739 2019-03-09 7/24 0% 2.50 RR Toi-Toi-man Tournament