Nemchinova Alena
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).
50 place (538.61).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (710.28 * 4 * 0.86 + 420.56 * 4.60 * 1 + 893.62 * 2.80 * 1 + 405.06 * 3.65 * 1 + 0) / (4 * 0.86 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 1) = 539.4821170146786
p2 = (893.62 * 2.80 * 1 + 710.28 * 4 * 0.86 + 420.56 * 4.60 * 1 + 405.06 * 3.65 * 1) / max_coefficients = 537.7450349037891
score = 539.4821170146786 * 0.5 + 537.7450349037891 * 0.5 = 538.6135759592339
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 49 -> 50 | 544.72 -> 538.61 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 41 -> 49 | 558.94 -> 544.72 | |
| 2024-08-26 | 42 -> 41 | 558.94 | |
| 2024-08-11 | 45 -> 42 | 555.90 -> 558.94 | |
| 2024-08-04 | 55 -> 45 | 516.37 -> 555.90 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 96 -> 55 | 366.49 -> 516.37 |
Guardian of the Winds: 0% -> 100% |
| 2024-06-11 | 99 -> 96 | 360.90 -> 366.49 | |
| 2024-06-09 | 94 -> 99 | 360.90 | |
| 2024-05-19 | 93 -> 94 | 360.90 | |
| 2024-05-12 | 93 | 360.90 |
X Russian Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 405 |
|
48/80 | 100% | 3.65 | RR | Riichi over Volga |
| 2 | 894 |
|
6/48 | 100% | 2.80 | RR | Guardian of the Winds |
| 3 | 421 |
|
63/108 | 100% | 4.60 | RR | X Russian Championship |
| 4 | 710 |
|
32/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |