Chirkova Lyudmila
From Samara, Russia
Internal rating (RR)
Rating date Jan. 20, 2024 (latest changes Jan. 20, 2024).
45 place (420.42).
how we calculated rating score
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
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 |
|
59/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 713 |
|
26/88 | 100% | 3.75 | RR | Money can not buy tenpai |
3 | 267 |
|
56/76 | 71% | 4.20 | RR | IX Russian Riichi Championship |