Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

Rating date Jan. 6, 2023 (latest changes Jan. 6, 2023).

53 place (384.52).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995

p1 = (709.09 * 3.30 * 0.71 + 978.72 * 3.10 * 0.86 + 144.14 * 4.05 * 1 + 0 + 0) / (3.30 * 0.71 + 3.10 * 0.86 + 4.05 * 1 + 1 + 1) = 438.8676994269808

p2 = (978.72 * 3.10 * 0.86 + 709.09 * 3.30 * 0.71 + 144.14 * 4.05 * 1) / max_coefficients = 330.1639797932889

score = 438.8676994269808 * 0.5 + 330.1639797932889 * 0.5 = 384.51583961013483

Rating changes

Show

all results
Date Place Points Reason
2023-01-06 50 -> 53 401.40 -> 384.52

Kirov Tournament: 86% -> 71%
2022-12-19 44 -> 50 424.07 -> 401.40

Agari team tournament: 100% -> 86%
2022-11-28 45 -> 44 419.71 -> 424.07
2022-11-06 30 -> 45 447.59 -> 419.71

Kirov Tournament: 100% -> 86%
2022-10-14 151 -> 30 30.74 -> 447.59
2021-02-01 230 -> 151 64.96 -> 30.74
2020-02-01 230 64.96

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 144 2022-06-12 96/112 100% 4.05 RR Moscow Riichi 2022
2 979 2021-12-19 2/48 86% 3.10 RR Agari team tournament
3 709 2021-11-06 17/56 71% 3.30 RR Kirov Tournament
4 0 2019-07-21 36/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
5 193 2019-05-04 68/84 0% 4.20 EMA Haru Shanten 2019