Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

Rating date July 28, 2023 (latest changes July 28, 2023).

91 place (251.45).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 3.50 * 0.57) = 13.421155

p1 = (709.09 * 3.30 * 0.29 + 978.72 * 3.10 * 0.43 + 144.14 * 4.05 * 0.86 + 0 + 0) / (3.30 * 0.29 + 3.10 * 0.43 + 4.05 * 0.86 + 1 + 1) = 318.91743539903587

p2 = (978.72 * 3.10 * 0.43 + 709.09 * 3.30 * 0.29 + 144.14 * 4.05 * 0.86) / max_coefficients = 183.98491038960506

score = 318.91743539903587 * 0.5 + 183.98491038960506 * 0.5 = 251.45117289432045

Rating changes

Show

all results
Date Place Points Reason
2023-07-28 93 -> 91 251.45
2023-07-20 93 248.15 -> 251.45
2023-07-06 87 -> 93 271.36 -> 248.15

Kirov Tournament: 43% -> 29%
2023-06-19 80 -> 87 303.21 -> 271.36

Agari team tournament: 57% -> 43%
2023-06-12 82 -> 80 294.25 -> 303.21

Moscow Riichi 2022: 100% -> 86%
2023-06-11 65 -> 82 312.34 -> 294.25
2023-05-28 66 -> 65 310.26 -> 312.34
2023-05-20 67 -> 66 305.33 -> 310.26
2023-05-06 63 -> 67 326.45 -> 305.33

Kirov Tournament: 57% -> 43%
2023-04-19 60 -> 63 353.20 -> 326.45

Agari team tournament: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 144 2022-06-12 96/112 86% 4.05 RR Moscow Riichi 2022
2 979 2021-12-19 2/48 43% 3.10 RR Agari team tournament
3 709 2021-11-06 17/56 29% 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