Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date July 2, 2025 (latest changes July 2, 2025).
41 place (368.50).
how we calculated rating score
max_coefficients = (4.45 * 1 + 3.70 * 0.86 + 3.05 * 1) = 10.67127
p1 = (535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 600 * 1.80 * 0.86 + 0 + 0) / (3.05 * 1 + 4.45 * 1 + 1.80 * 0.86 + 1 + 1) = 362.1923102696966
p2 = (535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 600 * 1.80 * 0.86) / max_coefficients = 374.8016871468907
score = 362.1923102696966 * 0.5 + 374.8016871468907 * 0.5 = 368.49699870829363
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-02 | 45 -> 41 | 368.50 | |
| 2025-06-28 | 46 -> 45 | 368.50 | |
| 2025-06-27 | 32 -> 46 | 316.81 -> 368.50 |
Kawa-league, season 1: 0% -> 100% |
| 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% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 324 |
|
49/72 | 100% | 4.45 | ONLINE | Kawa-league, season 1 | Russia |
| 2 | 535 |
|
34/72 | 100% | 3.05 | ONLINE | Winter online tournament 2025 | Russia |
| 3 | 600 |
|
7/16 | 86% | 1.80 | ONLINE | Royale roulette | Russia |
| 4 | 634 |
|
46/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia |
| 5 | 576 |
|
60/140 | 0% | 3.70 | ONLINE | Corona go away | Russia |
| 6 | 189 |
|
117/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |