Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date Jan. 2, 2026 (latest changes Jan. 2, 2026).
55 place (372.12).
how we calculated rating score
max_coefficients = (4.45 * 1 + 4.45 * 1 + 3.05 * 1) = 11.95
p1 = (600 * 1.80 * 0.43 + 535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 285.71 * 2.30 * 1 + 310.81 * 4.45 * 1) / (1.80 * 0.43 + 3.05 * 1 + 4.45 * 1 + 2.30 * 1 + 4.45 * 1) = 371.2736694386971
p2 = (535.21 * 3.05 * 1 + 323.94 * 4.45 * 1 + 310.81 * 4.45 * 1) / max_coefficients = 372.9748953974896
score = 371.2736694386971 * 0.5 + 372.9748953974896 * 0.5 = 372.12428241809334
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-22 | 55 | 374.05 -> 372.12 |
Royale roulette: 57% -> 43% |
| 2025-12-16 | 57 -> 55 | 374.05 | |
| 2025-10-31 | 49 -> 57 | 372.24 -> 374.05 |
Kawa-league, season 2: 0% -> 100% |
| 2025-10-25 | 46 -> 49 | 361.70 -> 372.24 |
Final Cup Qualifiers 2025: 0% -> 100% |
| 2025-10-22 | 47 -> 46 | 372.47 -> 361.70 |
Royale roulette: 71% -> 57% |
| 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 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 311 |
|
52/75 | 100% | 4.45 | ONLINE | Kawa-league, season 2 | Russia | |
| 2 | 286 |
|
26/36 | 100% | 2.30 | ONLINE | Final Cup Qualifiers 2025 | Russia | |
| 3 | 324 |
|
49/72 | 100% | 4.45 | ONLINE | Kawa-league, season 1 | Russia | |
| 4 | 535 |
|
34/72 | 100% | 3.05 | ONLINE | Winter online tournament 2025 | Russia | |
| 5 | 600 |
|
7/16 | 43% | 1.80 | ONLINE | Royale roulette | Russia | |
| 6 | 634 |
|
46/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia | |
| 7 | 576 |
|
60/140 | 0% | 3.70 | ONLINE | Corona go away | Russia | |
| 8 | 189 |
|
117/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |