Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

Rating date March 19, 2026 (latest changes March 14, 2026).

54 place (553.81).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (981.31 * 4.60 * 0.14 + 63.16 * 3.85 * 0.43 + 325.84 * 3.75 * 0.57 + 741.94 * 3.10 * 0.71 + 285.71 * 3.50 * 1 + 746.27 * 4.10 * 1 + 833.33 * 3 * 1) / (4.60 * 0.14 + 3.85 * 0.43 + 3.75 * 0.57 + 3.10 * 0.71 + 3.50 * 1 + 4.10 * 1 + 3 * 1) = 558.9529515138842

p2 = (746.27 * 4.10 * 1 + 833.33 * 3 * 1 + 741.94 * 3.10 * 0.71 + 285.71 * 3.50 * 1) / max_coefficients = 548.6682274247491

score = 558.9529515138842 * 0.5 + 548.6682274247491 * 0.5 = 553.8105894693167

Rating changes

Show

all results
Date Place Points Reason
2026-03-12 47 -> 54 571.24 -> 553.81

X Russian Championship: 29% -> 14%
2026-03-10 46 -> 47 571.24
2026-03-07 43 -> 46 584.24 -> 571.24

Moscow Open Riichi Marathon: 86% -> 71%
2026-03-01 49 -> 43 576.75 -> 584.24

SPB Riichi Open 2024: 57% -> 43%
2026-02-23 42 -> 49 576.75
2026-02-16 43 -> 42 576.75
2026-02-13 45 -> 43 573.48 -> 576.75

Moscow Riichi 2024: 71% -> 57%
2026-02-09 46 -> 45 573.48
2026-02-08 45 -> 46 573.48
2026-02-04 44 -> 45 573.48

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 833 2026-01-07 6/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
2 746 2025-06-15 18/68 100% 4.10 RR 13 bloody tiles Perm
3 286 2025-05-03 51/71 100% 3.50 RR Riichi over The Volga 2025 Samara
4 742 2025-01-07 9/32 71% 3.10 RR Moscow Open Riichi Marathon Moscow
5 326 2024-10-13 61/90 57% 3.75 RR Moscow Riichi 2024 Moscow
6 63 2024-09-01 90/96 43% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 981 2024-05-12 🥉 3/108 14% 4.60 RR X Russian Championship Perm
8 144 2022-06-12 96/112 0% 4.05 RR Moscow Riichi 2022 Moscow
9 979 2021-12-19 🥈 2/48 0% 3.10 RR Agari team tournament Moscow
10 709 2021-11-06 17/56 0% 3.30 RR Kirov Tournament Kirov
11 0 2019-07-21 36/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
12 193 2019-05-04 68/84 0% 4.20 EMA Haru Shanten 2019 Perm