Ratnikova Anna

From Samara, Russia

EMA: 15990370

Player page

Common russian riichi rating (CRR)

Rating date Jan. 28, 2023 (latest changes Jan. 28, 2023).

61 place (385.50).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55

p1 = (600 * 4.20 * 1 + 585.59 * 4.05 * 1 + 0 + 0 + 0) / (4.20 * 1 + 4.05 * 1 + 1 + 1 + 1) = 434.81066666666663

p2 = (600 * 4.20 * 1 + 585.59 * 4.05 * 1) / max_coefficients = 336.19381443298965

score = 434.81066666666663 * 0.5 + 336.19381443298965 * 0.5 = 385.5022405498281

Rating changes

Show

all results
Date Place Points Reason
2023-01-28 61 383.71 -> 385.50
2023-01-14 60 -> 61 383.71
2023-01-06 61 -> 60 383.71
2022-12-19 61 382.11 -> 383.71
2022-12-18 59 -> 61 382.11
2022-12-03 59 382.11

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 600 2022-11-06 31/76 100% 4.20 RR IX Russian Riichi Championship
2 586 2022-06-12 47/112 100% 4.05 RR Moscow Riichi 2022
3 198 2018-11-18 74/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
4 455 2017-02-26 7/12 0% 1.10 CRR Mahjong tournament at the Intellectual Games Festival 2017