Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Internal rating (RR)

Rating date May 20, 2023 (latest changes May 20, 2023).

30 place (501.18).

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

Show

all results
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%
2023-05-05 115 -> 29 168.93 -> 507.43
2021-02-01 132 -> 115 315.12 -> 168.93
2020-02-01 132 315.12

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 829 2022-06-12 20/112 100% 4.05 RR Moscow Riichi 2022 Moscow
2 596 2021-12-19 20/48 57% 3.10 RR Agari team tournament Moscow
3 673 2021-11-06 19/56 43% 3.30 RR Kirov Tournament Kirov
4 600 2019-07-21 15/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
5 373 2019-05-04 53/84 0% 4.20 EMA Haru Shanten 2019 Perm
6 298 2019-01-13 34/48 0% 3.10 RR Agari team tournament 2019 Moscow