Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

Rating date May 31, 2025 (latest changes May 30, 2025).

60 place (514.10).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (981.31 * 4.60 * 0.86 + 63.16 * 3.85 * 1 + 325.84 * 3.75 * 1 + 741.94 * 3.10 * 1 + 285.71 * 3.50 * 1) / (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 3.50 * 1) = 475.8971396697067

p2 = (981.31 * 4.60 * 0.86 + 741.94 * 3.10 * 1 + 325.84 * 3.75 * 1 + 285.71 * 3.50 * 1) / max_coefficients = 552.2982808803724

score = 475.8971396697067 * 0.5 + 552.2982808803724 * 0.5 = 514.0977102750396

Rating changes

Show

all results
Date Place Points Reason
2025-05-12 56 -> 60 531.83 -> 514.10

X Russian Championship: 100% -> 86%
2025-05-03 57 -> 56 515.13 -> 531.83

Riichi over The Volga 2025: 0% -> 100%
2025-04-11 58 -> 57 515.13
2025-03-10 59 -> 58 515.13
2025-03-03 62 -> 59 515.13
2025-03-02 59 -> 62 515.13
2025-02-16 50 -> 59 515.13
2025-02-02 48 -> 50 515.13
2025-01-26 49 -> 48 515.13
2025-01-07 82 -> 49 399.15 -> 515.13

Moscow Open Riichi Marathon: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 286 2025-05-03 51/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 742 2025-01-07 9/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
3 326 2024-10-13 61/90 100% 3.75 RR Moscow Riichi 2024 Moscow
4 63 2024-09-01 90/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 981 2024-05-12 3/108 86% 4.60 RR X Russian Championship Perm
6 144 2022-06-12 96/112 0% 4.05 RR Moscow Riichi 2022 Moscow
7 979 2021-12-19 2/48 0% 3.10 RR Agari team tournament Moscow
8 709 2021-11-06 17/56 0% 3.30 RR Kirov Tournament Kirov
9 0 2019-07-21 36/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
10 193 2019-05-04 68/84 0% 4.20 EMA Haru Shanten 2019 Perm