Ratnikova Anna

From Samara, Russia

EMA: 15990370

Player page

Common russian riichi rating (CRR)

Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).

41 place (573.14).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998

p1 = (600 * 4.20 * 0.29 + 551.72 * 3.75 * 0.71 + 439.25 * 4 * 1 + 644.86 * 4.60 * 1 + 329.11 * 3.65 * 1 + 821.05 * 3.85 * 1) / (4.20 * 0.29 + 3.75 * 0.71 + 4 * 1 + 4.60 * 1 + 3.65 * 1 + 3.85 * 1) = 564.7808038265011

p2 = (821.05 * 3.85 * 1 + 644.86 * 4.60 * 1 + 439.25 * 4 * 1 + 551.72 * 3.75 * 0.71) / max_coefficients = 581.5080745341617

score = 564.7808038265011 * 0.5 + 581.5080745341617 * 0.5 = 573.1444391803313

Rating changes

Show

all results
Date Place Points Reason
2024-09-01 63 -> 41 493.72 -> 573.14

SPB Riichi Open 2024: 0% -> 100%
2024-08-27 64 -> 63 493.72
2024-08-11 62 -> 64 501.47 -> 493.72

Money can not buy tenpai: 86% -> 71%
2024-08-04 59 -> 62 500.23 -> 501.47

Riichi over Volga: 0% -> 100%
2024-07-14 52 -> 59 500.23
2024-07-06 50 -> 52 514.09 -> 500.23

IX Russian Riichi Championship: 43% -> 29%
2024-07-03 51 -> 50 514.09
2024-06-11 47 -> 51 534.35 -> 514.09

Money can not buy tenpai: 100% -> 86%
2024-06-09 42 -> 47 534.35
2024-05-25 41 -> 42 534.35

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 821 2024-09-01 18/96 100% 3.85 RR SPB Riichi Open 2024
2 329 2024-08-04 54/80 100% 3.65 RR Riichi over Volga
3 645 2024-05-12 39/108 100% 4.60 RR X Russian Championship
4 439 2023-09-03 61/108 100% 4.00 RR SPB Riichi Open 2023
5 552 2023-06-11 40/88 71% 3.75 RR Money can not buy tenpai
6 600 2022-11-06 31/76 29% 4.20 RR IX Russian Riichi Championship
7 586 2022-06-12 47/112 0% 4.05 RR Moscow Riichi 2022
8 198 2018-11-18 74/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
9 455 2017-02-26 7/12 0% 1.10 CRR Mahjong tournament at the Intellectual Games Festival 2017