Chirkova Lyudmila
From Samara, Russia
Internal rating (RR)
Rating date March 10, 2024 (latest changes March 10, 2024).
52 place (406.55).
how we calculated rating score
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
Date | Place | Points | Reason |
---|---|---|---|
2024-03-10 | 42 -> 52 | 439.17 -> 406.55 | |
2024-03-06 | 43 -> 42 | 430.74 -> 439.17 |
IX Russian Riichi Championship: 71% -> 57% |
2024-02-12 | 45 -> 43 | 420.42 -> 430.74 | |
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 |
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 | 57% | 4.20 | RR | IX Russian Riichi Championship |