Ratnikova Anna

From Samara, Russia

EMA: 15990370

Player page

Common russian riichi rating (CRR)

Rating date Aug. 4, 2024 (latest changes Aug. 4, 2024).

62 place (501.47).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.75 * 0.86) = 15.464125

p1 = (600 * 4.20 * 0.29 + 551.72 * 3.75 * 0.86 + 439.25 * 4 * 1 + 644.86 * 4.60 * 1 + 329.11 * 3.65 * 1) / (4.20 * 0.29 + 3.75 * 0.86 + 4 * 1 + 4.60 * 1 + 3.65 * 1) = 505.15345445424026

p2 = (644.86 * 4.60 * 1 + 551.72 * 3.75 * 0.86 + 439.25 * 4 * 1 + 329.11 * 3.65 * 1) / max_coefficients = 497.79408792932037

score = 505.15345445424026 * 0.5 + 497.79408792932037 * 0.5 = 501.4737711917803

Rating changes

Show

all results
Date Place Points Reason
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
2024-05-12 61 -> 41 427.07 -> 534.35

X Russian Championship: 0% -> 100%
2024-05-06 57 -> 61 443.49 -> 427.07

IX Russian Riichi Championship: 57% -> 43%
2024-05-05 56 -> 57 443.49

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 329 2024-08-04 54/80 100% 3.65 RR Riichi over Volga
2 645 2024-05-12 39/108 100% 4.60 RR X Russian Championship
3 439 2023-09-03 61/108 100% 4.00 RR SPB Riichi Open 2023
4 552 2023-06-11 40/88 86% 3.75 RR Money can not buy tenpai
5 600 2022-11-06 31/76 29% 4.20 RR IX Russian Riichi Championship
6 586 2022-06-12 47/112 0% 4.05 RR Moscow Riichi 2022
7 198 2018-11-18 74/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
8 455 2017-02-26 7/12 0% 1.10 CRR Mahjong tournament at the Intellectual Games Festival 2017