Tkachenko Ivan
From Sarov, Russia
EMA: 15990417
Common russian riichi rating (CRR)
Rating date March 6, 2023 (latest changes March 6, 2023).
36 place (497.11).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (672.73 * 3.30 * 0.57 + 595.74 * 3.10 * 0.71 + 828.83 * 4.05 * 1 + 0 + 0) / (3.30 * 0.57 + 3.10 * 0.71 + 4.05 * 1 + 1 + 1) = 585.6629835614954
p2 = (828.83 * 4.05 * 1 + 595.74 * 3.10 * 0.71 + 672.73 * 3.30 * 0.57) / max_coefficients = 408.55326460481103
score = 585.6629835614954 * 0.5 + 408.55326460481103 * 0.5 = 497.1081240831532
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-03-06 | 34 -> 36 | 509.94 -> 497.11 |
Kirov Tournament: 71% -> 57% |
2023-02-25 | 32 -> 34 | 509.94 | |
2023-02-19 | 31 -> 32 | 519.13 -> 509.94 |
Agari team tournament: 86% -> 71% |
2023-01-28 | 32 -> 31 | 516.74 -> 519.13 | |
2023-01-06 | 30 -> 32 | 529.21 -> 516.74 |
Kirov Tournament: 86% -> 71% |
2022-12-19 | 28 -> 30 | 535.90 -> 529.21 |
Agari team tournament: 100% -> 86% |
2022-12-03 | 132 -> 28 | 168.93 -> 535.90 | |
2021-02-01 | 150 -> 132 | 315.12 -> 168.93 | |
2020-02-01 | 150 | 315.12 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 829 |
|
20/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
2 | 596 |
|
20/48 | 71% | 3.10 | RR | Agari team tournament |
3 | 673 |
|
19/56 | 57% | 3.30 | RR | Kirov Tournament |
4 | 600 |
|
15/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
5 | 373 |
|
53/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
6 | 298 |
|
34/48 | 0% | 3.10 | RR | Agari team tournament 2019 |