Ratnikova Anna

From Samara, Russia

EMA: 15990370

Player page

Common russian riichi rating (CRR)

Rating date June 11, 2023 (latest changes June 11, 2023).

36 place (483.75).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.75 * 1 + 2.80 * 1) = 14.8

p1 = (585.59 * 4.05 * 1 + 600 * 4.20 * 1 + 551.72 * 3.75 * 1 + 0 + 0) / (4.05 * 1 + 4.20 * 1 + 3.75 * 1 + 1 + 1) = 497.185

p2 = (600 * 4.20 * 1 + 585.59 * 4.05 * 1 + 551.72 * 3.75 * 1) / max_coefficients = 470.3101351351351

score = 497.185 * 0.5 + 470.3101351351351 * 0.5 = 483.74756756756756

Rating changes

Show

all results
Date Place Points Reason
2023-06-11 54 -> 36 397.91 -> 483.75

Money can not buy tenpai: 0% -> 100%
2023-05-20 55 -> 54 391.49 -> 397.91
2023-05-06 54 -> 55 391.49
2023-05-01 53 -> 54 391.49
2023-04-19 54 -> 53 391.49
2023-03-28 57 -> 54 391.49
2023-03-20 58 -> 57 385.50 -> 391.49
2023-03-06 60 -> 58 385.50
2023-02-25 59 -> 60 385.50
2023-02-19 61 -> 59 385.50

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 552 2023-06-11 40/88 100% 3.75 RR Money can not buy tenpai
2 600 2022-11-06 31/76 100% 4.20 RR IX Russian Riichi Championship
3 586 2022-06-12 47/112 100% 4.05 RR Moscow Riichi 2022
4 198 2018-11-18 74/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
5 455 2017-02-26 7/12 0% 1.10 CRR Mahjong tournament at the Intellectual Games Festival 2017