Chirkova Lyudmila
From Samara, Russia
Common russian riichi rating (CRR)
Rating date April 20, 2024 (latest changes April 20, 2024).
71 place (399.44).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
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 = 375.4861313868613
score = 423.3918359687503 * 0.5 + 375.4861313868613 * 0.5 = 399.4389836778058
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-12 | 72 -> 71 | 399.44 | |
| 2024-03-30 | 69 -> 72 | 399.44 | |
| 2024-03-20 | 71 -> 69 | 399.44 | |
| 2024-03-10 | 64 -> 71 | 408.79 -> 399.44 | |
| 2024-03-06 | 66 -> 64 | 402.30 -> 408.79 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-02-12 | 68 -> 66 | 402.30 | |
| 2024-01-20 | 69 -> 68 | 402.30 | |
| 2024-01-06 | 71 -> 69 | 396.38 -> 402.30 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-27 | 70 -> 71 | 396.38 | |
| 2023-12-19 | 72 -> 70 | 396.38 |
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 |