Chirkova Lyudmila

From Samara, Russia

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Internal rating (RR)

Rating date March 20, 2024 (latest changes March 20, 2024).

46 place (406.55).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988

p1 = (266.67 * 4.20 * 0.57 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 0 + 0) / (4.20 * 0.57 + 3.75 * 1 + 4 * 1 + 1 + 1) = 423.3918359687503

p2 = (712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 0.57) / max_coefficients = 389.7126337512159

score = 423.3918359687503 * 0.5 + 389.7126337512159 * 0.5 = 406.55223485998306

Rating changes

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all results
Date Place Points Reason
2024-03-20 53 -> 46 406.55
2024-03-10 43 -> 53 439.17 -> 406.55
2024-03-06 44 -> 43 430.74 -> 439.17

IX Russian Riichi Championship: 71% -> 57%
2024-02-12 46 -> 44 420.42 -> 430.74
2024-01-06 46 413.44 -> 420.42

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 47 -> 46 413.44
2023-12-12 48 -> 47 404.60 -> 413.44
2023-11-28 51 -> 48 404.60
2023-11-06 56 -> 51 398.73 -> 404.60

IX Russian Riichi Championship: 100% -> 86%
2023-10-19 57 -> 56 398.73

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 57% 4.20 RR IX Russian Riichi Championship