Tkachenko Ivan
From Sarov, Russia
EMA: 15990417
Internal rating (RR)
Rating date May 20, 2023 (latest changes May 20, 2023).
30 place (501.18).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.45 * 0.57) = 12.72138
p1 = (672.73 * 3.30 * 0.43 + 595.74 * 3.10 * 0.57 + 828.83 * 4.05 * 1 + 0 + 0) / (3.30 * 0.43 + 3.10 * 0.57 + 4.05 * 1 + 1 + 1) = 580.736531640197
p2 = (828.83 * 4.05 * 1 + 595.74 * 3.10 * 0.57 + 672.73 * 3.30 * 0.43) / max_coefficients = 421.61463614796514
score = 580.736531640197 * 0.5 + 421.61463614796514 * 0.5 = 501.17558389408106
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-05-20 | 30 | 493.21 -> 501.18 | |
2023-05-06 | 29 -> 30 | 507.43 -> 493.21 |
Kirov Tournament: 57% -> 43% |
2023-04-19 | 28 -> 29 | 513.58 -> 507.43 |
Agari team tournament: 71% -> 57% |
2023-03-28 | 29 -> 28 | 509.56 -> 513.58 | |
2023-03-20 | 31 -> 29 | 501.93 -> 509.56 | |
2023-03-06 | 29 -> 31 | 515.02 -> 501.93 |
Kirov Tournament: 71% -> 57% |
2023-02-19 | 26 -> 29 | 521.35 -> 515.02 |
Agari team tournament: 86% -> 71% |
2023-01-28 | 29 -> 26 | 516.74 -> 521.35 | |
2023-01-06 | 27 -> 29 | 529.21 -> 516.74 |
Kirov Tournament: 86% -> 71% |
2022-12-19 | 24 -> 27 | 535.90 -> 529.21 |
Agari team tournament: 100% -> 86% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 829 |
|
20/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
2 | 596 |
|
20/48 | 57% | 3.10 | RR | Agari team tournament |
3 | 673 |
|
19/56 | 43% | 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 |