Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Internal rating (RR)

Rating date June 12, 2022 (latest changes June 12, 2022).

17 place (557.70).

max_coefficients = (4.05 * 1 + 3.50 * 1 + 3.45 * 1 + 3.30 * 1) = 14.3

p1 = (595.74 * 3.10 * 1 + 672.73 * 3.30 * 1 + 828.83 * 4.05 * 1 + 0 + 0) / (3.10 * 1 + 3.30 * 1 + 4.05 * 1 + 1 + 1) = 596.2706827309237

p2 = (828.83 * 4.05 * 1 + 672.73 * 3.30 * 1 + 595.74 * 3.10 * 1) / max_coefficients = 519.1307692307691

score = 596.2706827309237 * 0.5 + 519.1307692307691 * 0.5 = 557.7007259808464

Rating changes

Show

all results
Date Place Points Reason
2022-06-12 26 -> 17 368.63 -> 557.70

Moscow Riichi 2022: 0% -> 100%
2022-05-13 116 -> 26 168.93 -> 368.63
2021-02-01 133 -> 116 315.12 -> 168.93
2020-02-01 133 315.12

Tournaments

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