Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date July 7, 2026 (latest changes July 5, 2026).
52 place (390.90).
how we calculated rating score
max_coefficients = (4.45 * 1 + 4.45 * 0.86 + 2.30 * 1) = 10.564095000000002
p1 = (535.21 * 3.05 * 0.57 + 323.94 * 4.45 * 0.86 + 285.71 * 2.30 * 1 + 310.81 * 4.45 * 1 + 677.42 * 2.20 * 1) / (3.05 * 0.57 + 4.45 * 0.86 + 2.30 * 1 + 4.45 * 1 + 2.20 * 1) = 392.83952804413633
p2 = (677.42 * 2.20 * 1 + 310.81 * 4.45 * 1 + 323.94 * 4.45 * 0.86) / max_coefficients = 388.9571231610468
score = 392.83952804413633 * 0.5 + 388.9571231610468 * 0.5 = 390.89832560259157
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-07-04 | 50 -> 52 | 390.90 | |
| 2026-06-27 | 51 -> 50 | 387.61 -> 390.90 |
Kawa-league, season 1: 100% -> 86% |
| 2026-06-22 | 51 | 389.36 -> 387.61 |
Royale roulette: 14% -> 0% |
| 2026-06-16 | 52 -> 51 | 389.36 | |
| 2026-06-05 | 53 -> 52 | 389.36 | |
| 2026-05-18 | 53 | 391.31 -> 389.36 |
Winter online tournament 2025: 71% -> 57% |
| 2026-04-22 | 52 -> 53 | 392.93 -> 391.31 |
Royale roulette: 29% -> 14% |
| 2026-04-05 | 54 -> 52 | 391.23 -> 392.93 | |
| 2026-03-28 | 58 -> 54 | 354.96 -> 391.23 |
Spring online tournament 2025: 0% -> 100% |
| 2026-03-21 | 59 -> 58 | 354.96 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 677 |
|
11/32 | 100% | 2.20 | ONLINE | Spring online tournament 2025 | Russia | |
| 2 | 311 |
|
52/75 | 100% | 4.45 | ONLINE | Kawa-league, season 2 | Russia | |
| 3 | 286 |
|
26/36 | 100% | 2.30 | ONLINE | Final Cup Qualifiers 2025 | Russia | |
| 4 | 324 |
|
49/72 | 86% | 4.45 | ONLINE | Kawa-league, season 1 | Russia | |
| 5 | 535 |
|
34/72 | 57% | 3.05 | ONLINE | Winter online tournament 2025 | Russia | |
| 6 | 600 |
|
7/16 | 0% | 1.80 | ONLINE | Royale roulette | Russia | |
| 7 | 634 |
|
46/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia | |
| 8 | 576 |
|
60/140 | 0% | 3.70 | ONLINE | Corona go away | Russia | |
| 9 | 189 |
|
117/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |