Chirkova Lyudmila
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Sept. 20, 2023 (latest changes Sept. 20, 2023).
67 place (391.04).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (266.67 * 4.20 * 1 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 0 + 0) / (4.20 * 1 + 3.75 * 1 + 4 * 1 + 1 + 1) = 403.1677419354839
p2 = (712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 1) / max_coefficients = 378.9141149161064
score = 403.1677419354839 * 0.5 + 378.9141149161064 * 0.5 = 391.0409284257952
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-09-20 | 71 -> 67 | 391.04 | |
2023-09-06 | 72 -> 71 | 391.04 | |
2023-09-03 | 90 -> 72 | 312.16 -> 391.04 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-27 | 88 -> 90 | 312.16 | |
2023-08-12 | 90 -> 88 | 306.51 -> 312.16 | |
2023-07-28 | 89 -> 90 | 306.51 | |
2023-07-20 | 90 -> 89 | 306.51 | |
2023-07-06 | 91 -> 90 | 306.51 | |
2023-07-03 | 92 -> 91 | 306.51 | |
2023-06-19 | 94 -> 92 | 306.51 |
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 | 100% | 4.20 | RR | IX Russian Riichi Championship |