Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date Oct. 16, 2025 (latest changes Oct. 16, 2025).
47 place (372.47).
how we calculated rating score
max_coefficients = (4.45 * 1 + 3.05 * 1 + 2.40 * 1) = 9.9
p1 = (600 * 1.80 * 0.71 + 535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 0 + 0) / (1.80 * 0.71 + 3.05 * 1 + 4.45 * 1 + 1 + 1) = 356.5244480211835
p2 = (535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 600 * 1.80 * 0.71) / max_coefficients = 388.4222222222222
score = 356.5244480211835 * 0.5 + 388.4222222222222 * 0.5 = 372.47333512170286
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-16 | 47 | 367.82 -> 372.47 | |
| 2025-09-02 | 48 -> 47 | 367.82 | |
| 2025-08-22 | 46 -> 48 | 378.26 -> 367.82 |
Royale roulette: 86% -> 71% |
| 2025-08-16 | 47 -> 46 | 368.50 -> 378.26 | |
| 2025-07-05 | 41 -> 47 | 368.50 | |
| 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 |
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 | 71% | 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 |