Chirkova Lyudmila
From Samara, Russia
Internal rating (RR)
Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).
50 place (404.60).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002
p1 = (266.67 * 4.20 * 0.86 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 0 + 0) / (4.20 * 0.86 + 3.75 * 1 + 4 * 1 + 1 + 1) = 409.30439511543966
p2 = (712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 0.86) / max_coefficients = 399.89344254496666
score = 409.30439511543966 * 0.5 + 399.89344254496666 * 0.5 = 404.59891883020316
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2023-09-03 | 69 -> 62 | 320.82 -> 391.04 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-12 | 72 -> 69 | 314.45 -> 320.82 | |
2023-07-28 | 74 -> 72 | 314.45 | |
2023-07-20 | 75 -> 74 | 309.38 -> 314.45 |
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 | 86% | 4.20 | RR | IX Russian Riichi Championship |