Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

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

151 place (30.74).

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

p1 = (192.77 * 4.20 * 0.29 + 0 * 3.20 * 0.43 + 0 + 0 + 0) / (4.20 * 0.29 + 3.20 * 0.43 + 1 + 1 + 1) = 41.51694528902657

p2 = (192.77 * 4.20 * 0.29 + 0 * 3.20 * 0.43) / max_coefficients = 19.96522420633465

score = 41.51694528902657 * 0.5 + 19.96522420633465 * 0.5 = 30.74108474768061

Rating changes

Show

Date Place Points Reason
2021-02-01 230 -> 151 64.96 -> 30.74
2020-02-01 230 64.96

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 0 2019-07-21 36/36 43% 3.20 RR Moscow Open Riichi Marathon 2019
2 193 2019-05-04 68/84 29% 4.20 EMA Haru Shanten 2019