Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Common russian riichi rating (CRR)

Rating date June 17, 2023 (latest changes June 17, 2023).

46 place (453.78).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255

p1 = (672.73 * 3.30 * 0.43 + 595.74 * 3.10 * 0.57 + 828.83 * 4.05 * 0.86 + 0 + 0) / (3.30 * 0.43 + 3.10 * 0.57 + 4.05 * 0.86 + 1 + 1) = 564.1508725622981

p2 = (828.83 * 4.05 * 0.86 + 595.74 * 3.10 * 0.57 + 672.73 * 3.30 * 0.43) / max_coefficients = 343.4183551311048

score = 564.1508725622981 * 0.5 + 343.4183551311048 * 0.5 = 453.78461384670146

Rating changes

Show

all results
Date Place Points Reason
2023-06-12 40 -> 46 471.57 -> 453.78

Moscow Riichi 2022: 100% -> 86%
2023-06-11 35 -> 40 488.28 -> 471.57
2023-05-20 36 -> 35 481.24 -> 488.28
2023-05-06 34 -> 36 494.76 -> 481.24

Kirov Tournament: 57% -> 43%
2023-04-22 32 -> 34 494.76
2023-04-19 33 -> 32 504.38 -> 494.76

Agari team tournament: 71% -> 57%
2023-03-28 34 -> 33 504.38
2023-03-20 36 -> 34 497.11 -> 504.38
2023-03-06 34 -> 36 509.94 -> 497.11

Kirov Tournament: 71% -> 57%
2023-02-25 32 -> 34 509.94

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 829 2022-06-12 20/112 86% 4.05 RR Moscow Riichi 2022
2 596 2021-12-19 20/48 57% 3.10 RR Agari team tournament
3 673 2021-11-06 19/56 43% 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