Chirkova Lyudmila

From Samara, Russia

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Internal rating (RR)

Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).

45 place (420.42).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001

p1 = (266.67 * 4.20 * 0.71 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 0 + 0) / (4.20 * 0.71 + 3.75 * 1 + 4 * 1 + 1 + 1) = 416.0145128728806

p2 = (712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 0.71) / max_coefficients = 424.8163326763249

score = 416.0145128728806 * 0.5 + 424.8163326763249 * 0.5 = 420.41542277460275

Rating changes

Show

all results
Date Place Points Reason
2024-01-06 45 413.44 -> 420.42

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 46 -> 45 413.44
2023-12-12 47 -> 46 404.60 -> 413.44
2023-11-28 50 -> 47 404.60
2023-11-06 55 -> 50 398.73 -> 404.60

IX Russian Riichi Championship: 100% -> 86%
2023-10-19 56 -> 55 398.73
2023-10-12 56 391.04 -> 398.73
2023-09-28 58 -> 56 391.04
2023-09-20 61 -> 58 391.04
2023-09-06 62 -> 61 391.04

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 458 2023-09-03 59/108 100% 4.00 RR SPB Riichi Open 2023
2 713 2023-06-11 26/88 100% 3.75 RR Money can not buy tenpai
3 267 2022-11-06 56/76 71% 4.20 RR IX Russian Riichi Championship