Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Online rating
Rating date Oct. 31, 2026 (latest changes Oct. 31, 2026).
48 place (403.14).
how we calculated rating score
max_coefficients = (4.45 * 0.86 + 4.45 * 0.57 + 2.20 * 1) = 8.556825
p1 = (535.21 * 3.05 * 0.29 + 323.94 * 4.45 * 0.57 + 285.71 * 2.30 * 0.86 + 310.81 * 4.45 * 0.86 + 677.42 * 2.20 * 1) / (3.05 * 0.29 + 4.45 * 0.57 + 2.30 * 0.86 + 4.45 * 0.86 + 2.20 * 1) = 397.3055053098634
p2 = (677.42 * 2.20 * 1 + 310.81 * 4.45 * 0.86 + 323.94 * 4.45 * 0.57) / max_coefficients = 408.9694483643173
score = 397.3055053098634 * 0.5 + 408.9694483643173 * 0.5 = 403.1374768370904
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-31 | 46 -> 48 | 397.46 -> 403.14 |
Kawa-league, season 2: 100% -> 86% |
| 2026-10-27 | 46 | 393.20 -> 397.46 |
Kawa-league, season 1: 71% -> 57% |
| 2026-10-25 | 47 -> 46 | 389.89 -> 393.20 |
Final Cup Qualifiers 2025: 100% -> 86% |
| 2026-10-05 | 48 -> 47 | 389.89 | |
| 2026-09-18 | 48 | 392.30 -> 389.89 |
Winter online tournament 2025: 43% -> 29% |
| 2026-08-27 | 50 -> 48 | 388.69 -> 392.30 |
Kawa-league, season 1: 86% -> 71% |
| 2026-08-05 | 52 -> 50 | 388.69 | |
| 2026-07-18 | 52 | 390.90 -> 388.69 |
Winter online tournament 2025: 57% -> 43% |
| 2026-07-04 | 50 -> 52 | 390.90 | |
| 2026-06-27 | 51 -> 50 | 387.61 -> 390.90 |
Kawa-league, season 1: 100% -> 86% |
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 | 86% | 4.45 | ONLINE | Kawa-league, season 2 | Russia | |
| 3 | 286 |
|
26/36 | 86% | 2.30 | ONLINE | Final Cup Qualifiers 2025 | Russia | |
| 4 | 324 |
|
49/72 | 57% | 4.45 | ONLINE | Kawa-league, season 1 | Russia | |
| 5 | 535 |
|
34/72 | 29% | 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 |