Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Common russian riichi rating (CRR)

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

32 place (516.74).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995

p1 = (672.73 * 3.30 * 0.71 + 595.74 * 3.10 * 0.86 + 828.83 * 4.05 * 1 + 0 + 0) / (3.30 * 0.71 + 3.10 * 0.86 + 4.05 * 1 + 1 + 1) = 589.7769382332207

p2 = (828.83 * 4.05 * 1 + 672.73 * 3.30 * 0.71 + 595.74 * 3.10 * 0.86) / max_coefficients = 443.6943100884987

score = 589.7769382332207 * 0.5 + 443.6943100884987 * 0.5 = 516.7356241608597

Rating changes

Show

all results
Date Place Points Reason
2023-01-06 30 -> 32 529.21 -> 516.74

Kirov Tournament: 86% -> 71%
2022-12-19 28 -> 30 535.90 -> 529.21

Agari team tournament: 100% -> 86%
2022-12-03 132 -> 28 168.93 -> 535.90
2021-02-01 150 -> 132 315.12 -> 168.93
2020-02-01 150 315.12

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 86% 3.10 RR Agari team tournament
3 673 2021-11-06 19/56 71% 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