Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Common russian riichi rating (CRR)

Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).

54 place (570.01).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (981.31 * 4.60 * 0.57 + 63.16 * 3.85 * 0.86 + 325.84 * 3.75 * 0.86 + 741.94 * 3.10 * 1 + 285.71 * 3.50 * 1 + 746.27 * 4.10 * 1) / (4.60 * 0.57 + 3.85 * 0.86 + 3.75 * 0.86 + 3.10 * 1 + 3.50 * 1 + 4.10 * 1) = 513.7846228278837

p2 = (746.27 * 4.10 * 1 + 981.31 * 4.60 * 0.57 + 741.94 * 3.10 * 1 + 325.84 * 3.75 * 0.86) / max_coefficients = 626.2308939440767

score = 513.7846228278837 * 0.5 + 626.2308939440767 * 0.5 = 570.0077583859802

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 51 -> 54 563.91 -> 570.01

Moscow Riichi 2024: 100% -> 86%
2025-10-09 53 -> 51 563.91
2025-10-04 55 -> 53 563.91
2025-09-30 56 -> 55 563.91
2025-09-14 58 -> 56 563.91
2025-09-12 47 -> 58 593.09 -> 563.91

X Russian Championship: 71% -> 57%
2025-09-01 54 -> 47 578.50 -> 593.09

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 51 -> 54 578.50
2025-08-25 52 -> 51 578.50
2025-08-04 53 -> 52 575.35 -> 578.50

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 746 2025-06-15 18/68 100% 4.10 RR 13 bloody tiles Perm
2 286 2025-05-03 51/71 100% 3.50 RR Riichi over The Volga 2025 Samara
3 742 2025-01-07 9/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
4 326 2024-10-13 61/90 86% 3.75 RR Moscow Riichi 2024 Moscow
5 63 2024-09-01 90/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 981 2024-05-12 🥉 3/108 57% 4.60 RR X Russian Championship Perm
7 144 2022-06-12 96/112 0% 4.05 RR Moscow Riichi 2022 Moscow
8 979 2021-12-19 🥈 2/48 0% 3.10 RR Agari team tournament Moscow
9 709 2021-11-06 17/56 0% 3.30 RR Kirov Tournament Kirov
10 0 2019-07-21 36/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
11 193 2019-05-04 68/84 0% 4.20 EMA Haru Shanten 2019 Perm