Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Internal rating (RR)
Rating date May 12, 2024 (latest changes May 12, 2024).
55 place (430.33).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999
p1 = (144.14 * 4.05 * 0.14 + 981.31 * 4.60 * 1 + 0 + 0 + 0) / (4.05 * 0.14 + 4.60 * 1 + 1 + 1 + 1) = 562.1204720284103
p2 = (981.31 * 4.60 * 1 + 144.14 * 4.05 * 0.14) / max_coefficients = 298.535064935065
score = 562.1204720284103 * 0.5 + 298.535064935065 * 0.5 = 430.3277684817376
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-12 | 113 -> 55 | 92.14 -> 430.33 |
X Russian Championship: 0% -> 100% |
| 2023-12-12 | 113 | 94.70 -> 92.14 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 123 -> 113 | 94.70 | |
| 2023-11-20 | 125 -> 123 | 94.70 | |
| 2023-11-06 | 122 -> 125 | 143.94 -> 94.70 |
Kirov Tournament: 14% -> 0% |
| 2023-10-19 | 113 -> 122 | 189.11 -> 143.94 |
Agari team tournament: 29% -> 14% |
| 2023-10-12 | 113 | 183.97 -> 189.11 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 116 -> 113 | 183.97 | |
| 2023-09-06 | 112 -> 116 | 211.00 -> 183.97 |
Kirov Tournament: 29% -> 14% |
| 2023-09-03 | 96 -> 112 | 221.25 -> 211.00 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 981 |
|
3/108 | 100% | 4.60 | RR | X Russian Championship |
| 2 | 144 |
|
96/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |
| 3 | 979 |
|
2/48 | 0% | 3.10 | RR | Agari team tournament |
| 4 | 709 |
|
17/56 | 0% | 3.30 | RR | Kirov Tournament |
| 5 | 0 |
|
36/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 6 | 193 |
|
68/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |