Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date June 22, 2025 (latest changes June 22, 2025).
32 place (316.81).
how we calculated rating score
max_coefficients = (3.70 * 0.86 + 3.05 * 1 + 2.40 * 1) = 8.62127
p1 = (600 * 1.80 * 0.86 + 535.21 * 3.05 * 1 + 0 + 0 + 0) / (1.80 * 0.86 + 3.05 * 1 + 1 + 1 + 1) = 336.9069036637437
p2 = (535.21 * 3.05 * 1 + 600 * 1.80 * 0.86) / max_coefficients = 296.71498514719985
score = 336.9069036637437 * 0.5 + 296.71498514719985 * 0.5 = 316.8109444054718
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-22 | 31 -> 32 | 330.07 -> 316.81 |
Royale roulette: 100% -> 86% |
| 2025-06-16 | 32 -> 31 | 320.98 -> 330.07 | |
| 2025-05-02 | 34 -> 32 | 320.98 | |
| 2025-04-28 | 35 -> 34 | 320.98 | |
| 2025-04-05 | 29 -> 35 | 326.75 -> 320.98 | |
| 2025-03-02 | 30 -> 29 | 320.98 -> 326.75 | |
| 2025-01-18 | 136 -> 30 | 406.16 -> 320.98 |
Winter online tournament 2025: 0% -> 100% |
| 2021-02-01 | 136 | 406.16 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 535 |
|
34/72 | 100% | 3.05 | ONLINE | Winter online tournament 2025 | Russia |
| 2 | 600 |
|
7/16 | 86% | 1.80 | ONLINE | Royale roulette | Russia |
| 3 | 634 |
|
46/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia |
| 4 | 576 |
|
60/140 | 0% | 3.70 | ONLINE | Corona go away | Russia |
| 5 | 189 |
|
117/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |