Tkachenko Maria

From Sarov, Russia

EMA: 15990422

Player page

Internal rating (RR)

Rating date June 15, 2026 (latest changes June 15, 2026).

44 place (615.31).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (63.16 * 3.85 * 0.29 + 325.84 * 3.75 * 0.29 + 741.94 * 3.10 * 0.57 + 285.71 * 3.50 * 0.86 + 746.27 * 4.10 * 0.86 + 833.33 * 3 * 1 + 699.30 * 4.71 * 1) / (3.85 * 0.29 + 3.75 * 0.29 + 3.10 * 0.57 + 3.50 * 0.86 + 4.10 * 0.86 + 3 * 1 + 4.71 * 1) = 605.8402718832672

p2 = (699.30 * 4.71 * 1 + 746.27 * 4.10 * 0.86 + 833.33 * 3 * 1 + 741.94 * 3.10 * 0.57) / max_coefficients = 624.780485048584

score = 605.8402718832672 * 0.5 + 624.780485048584 * 0.5 = 615.3103784659256

Rating changes

Show

all results
Date Place Points Reason
2026-06-15 40 -> 44 619.71 -> 615.31

13 bloody tiles: 100% -> 86%
2026-06-14 53 -> 40 550.48 -> 619.71

XII Russian Championship: 0% -> 100%
2026-06-13 54 -> 53 545.80 -> 550.48

Moscow Riichi 2024: 43% -> 29%
2026-05-12 53 -> 54 554.65 -> 545.80

X Russian Championship: 14% -> 0%
2026-05-07 51 -> 53 567.88 -> 554.65

Moscow Open Riichi Marathon: 71% -> 57%
2026-05-03 48 -> 51 566.10 -> 567.88

Riichi over The Volga 2025: 100% -> 86%
2026-05-01 53 -> 48 557.54 -> 566.10

SPB Riichi Open 2024: 43% -> 29%
2026-04-26 52 -> 53 557.54
2026-04-16 51 -> 52 557.54
2026-04-13 56 -> 51 553.81 -> 557.54

Moscow Riichi 2024: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 699 2026-06-14 44/144 100% 4.71 RR XII Russian Championship Samara
2 833 2026-01-07 6/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
3 746 2025-06-15 18/68 86% 4.10 RR 13 bloody tiles Perm
4 286 2025-05-03 51/71 86% 3.50 RR Riichi over The Volga 2025 Samara
5 742 2025-01-07 9/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
6 326 2024-10-13 61/90 29% 3.75 RR Moscow Riichi 2024 Moscow
7 63 2024-09-01 90/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
8 981 2024-05-12 🥉 3/108 0% 4.60 RR X Russian Championship Perm
9 144 2022-06-12 96/112 0% 4.05 RR Moscow Riichi 2022 Moscow
10 979 2021-12-19 🥈 2/48 0% 3.10 RR Agari team tournament Moscow
11 709 2021-11-06 17/56 0% 3.30 RR Kirov Tournament Kirov
12 0 2019-07-21 36/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
13 193 2019-05-04 68/84 0% 4.20 EMA Haru Shanten 2019 Perm