Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Internal rating (RR)
Rating date Oct. 21, 2022 (latest changes Oct. 21, 2022).
30 place (447.59).
how we calculated rating score
max_coefficients = (4.05 * 1 + 3.50 * 1 + 3.45 * 1 + 3.30 * 1) = 14.3
p1 = (709.09 * 3.30 * 1 + 978.72 * 3.10 * 1 + 144.14 * 4.05 * 1 + 0 + 0) / (3.30 * 1 + 3.10 * 1 + 4.05 * 1 + 1 + 1) = 478.5397590361446
p2 = (978.72 * 3.10 * 1 + 709.09 * 3.30 * 1 + 144.14 * 4.05 * 1) / max_coefficients = 416.6307692307692
score = 478.5397590361446 * 0.5 + 416.6307692307692 * 0.5 = 447.5852641334569
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2022-10-14 | 151 -> 30 | 30.74 -> 447.59 | |
2021-02-01 | 230 -> 151 | 64.96 -> 30.74 | |
2020-02-01 | 230 | 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 | 100% | 3.10 | RR | Agari team tournament |
3 | 709 |
|
17/56 | 100% | 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 |