Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Internal rating (RR)
Rating date Dec. 19, 2022 (latest changes Dec. 19, 2022).
51 place (401.40).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (709.09 * 3.30 * 0.86 + 978.72 * 3.10 * 0.86 + 144.14 * 4.05 * 1 + 0 + 0) / (3.30 * 0.86 + 3.10 * 0.86 + 4.05 * 1 + 1 + 1) = 449.90654886159524
p2 = (978.72 * 3.10 * 0.86 + 709.09 * 3.30 * 0.86 + 144.14 * 4.05 * 1) / max_coefficients = 352.8844607616988
score = 449.90654886159524 * 0.5 + 352.8844607616988 * 0.5 = 401.395504811647
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2022-12-19 | 45 -> 51 | 424.07 -> 401.40 |
Agari team tournament: 100% -> 86% |
| 2022-11-28 | 46 -> 45 | 419.71 -> 424.07 | |
| 2022-11-06 | 31 -> 46 | 447.59 -> 419.71 |
Kirov Tournament: 100% -> 86% |
| 2022-06-12 | 16 -> 31 | 487.13 -> 447.59 |
Moscow Riichi 2022: 0% -> 100% |
| 2022-04-01 | 152 -> 16 | 30.74 -> 487.13 | |
| 2021-02-01 | 231 -> 152 | 64.96 -> 30.74 | |
| 2020-02-01 | 231 | 64.96 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 144 |
|
96/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 2 | 979 |
|
2/48 | 86% | 3.10 | RR | Agari team tournament |
| 3 | 709 |
|
17/56 | 86% | 3.30 | RR | Kirov Tournament |
| 4 | 0 |
|
36/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 5 | 193 |
|
68/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |