Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Common russian riichi rating (CRR)

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

128 place (224.12).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001

p1 = (595.74 * 3.10 * 0.14 + 828.83 * 4.05 * 0.43 + 0 + 0 + 0) / (3.10 * 0.14 + 4.05 * 0.43 + 1 + 1 + 1) = 328.7660123348562

p2 = (828.83 * 4.05 * 0.43 + 595.74 * 3.10 * 0.14) / max_coefficients = 119.48361452986774

score = 328.7660123348562 * 0.5 + 119.48361452986774 * 0.5 = 224.12481343236198

Rating changes

Show

all results
Date Place Points Reason
2023-12-12 115 -> 128 266.06 -> 224.12

Moscow Riichi 2022: 57% -> 43%
2023-11-28 119 -> 115 266.06
2023-11-26 117 -> 119 266.60 -> 266.06
2023-11-20 120 -> 117 266.60
2023-11-06 128 -> 120 168.93 -> 266.60

Kirov Tournament: 14% -> 0%
2021-02-01 146 -> 128 315.12 -> 168.93
2020-02-01 146 315.12

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 829 2022-06-12 20/112 43% 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