Tkachenko Ivan

From Sarov, Russia

EMA: 15990417

Player page

Common russian riichi rating (CRR)

Rating date Nov. 9, 2023 (latest changes Nov. 9, 2023).

122 place (266.60).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002

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 = 154.20408174803634

score = 378.99936774381814 * 0.5 + 154.20408174803634 * 0.5 = 266.60172474592724

Rating changes

Show

all results
Date Place Points Reason
2023-11-06 104 -> 122 323.71 -> 266.60

Kirov Tournament: 14% -> 0%
2023-11-05 102 -> 104 323.71
2023-10-22 99 -> 102 323.71
2023-10-19 96 -> 99 337.24 -> 323.71

Agari team tournament: 29% -> 14%
2023-10-12 80 -> 96 368.63 -> 337.24

Moscow Riichi 2022: 71% -> 57%
2023-09-28 82 -> 80 368.63
2023-09-20 83 -> 82 368.63
2023-09-09 84 -> 83 368.63
2023-09-06 77 -> 84 384.71 -> 368.63

Kirov Tournament: 29% -> 14%
2023-09-03 57 -> 77 395.25 -> 384.71

Tournaments

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