Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Internal rating (RR)

Rating date Nov. 6, 2023 (latest changes Nov. 6, 2023).

93 place (269.34).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002

p1 = (595.74 * 3.10 * 0.14 + 828.83 * 4.05 * 0.57 + 0 + 0 + 0) / (3.10 * 0.14 + 4.05 * 0.57 + 1 + 1 + 1) = 378.99936774381814

p2 = (828.83 * 4.05 * 0.57 + 595.74 * 3.10 * 0.14) / max_coefficients = 159.6868850167484

score = 378.99936774381814 * 0.5 + 159.6868850167484 * 0.5 = 269.34312638028325

Rating changes

Show

all results
Date Place Points Reason
2023-11-06 112 -> 93 168.93 -> 269.34

Kirov Tournament: 14% -> 0%
2021-02-01 129 -> 112 315.12 -> 168.93
2020-02-01 129 315.12

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 829 2022-06-12 20/112 57% 4.05 RR Moscow Riichi 2022 Moscow
2 596 2021-12-19 20/48 14% 3.10 RR Agari team tournament Moscow
3 673 2021-11-06 19/56 0% 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