Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Common russian riichi rating (CRR)

Rating date May 24, 2026 (latest changes May 23, 2026).

61 place (545.80).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (63.16 * 3.85 * 0.29 + 325.84 * 3.75 * 0.43 + 741.94 * 3.10 * 0.57 + 285.71 * 3.50 * 0.86 + 746.27 * 4.10 * 1 + 833.33 * 3 * 1) / (3.85 * 0.29 + 3.75 * 0.43 + 3.10 * 0.57 + 3.50 * 0.86 + 4.10 * 1 + 3 * 1) = 570.9960328253096

p2 = (746.27 * 4.10 * 1 + 833.33 * 3 * 1 + 741.94 * 3.10 * 0.57 + 285.71 * 3.50 * 0.86) / max_coefficients = 520.6074074074074

score = 570.9960328253096 * 0.5 + 520.6074074074074 * 0.5 = 545.8017201163585

Rating changes

Show

all results
Date Place Points Reason
2026-05-17 62 -> 61 545.80
2026-05-12 63 -> 62 554.65 -> 545.80

X Russian Championship: 14% -> 0%
2026-05-11 62 -> 63 554.65
2026-05-07 58 -> 62 567.88 -> 554.65

Moscow Open Riichi Marathon: 71% -> 57%
2026-05-03 55 -> 58 566.10 -> 567.88

Riichi over The Volga 2025: 100% -> 86%
2026-05-02 56 -> 55 566.10
2026-05-01 59 -> 56 557.54 -> 566.10

SPB Riichi Open 2024: 43% -> 29%
2026-04-19 60 -> 59 557.54
2026-04-13 64 -> 60 553.81 -> 557.54

Moscow Riichi 2024: 57% -> 43%
2026-04-05 63 -> 64 553.81

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 86% 3.50 RR Riichi over The Volga 2025 Samara
4 742 2025-01-07 9/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
5 326 2024-10-13 61/90 43% 3.75 RR Moscow Riichi 2024 Moscow
6 63 2024-09-01 90/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 981 2024-05-12 🥉 3/108 0% 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