Nemchinova Alena
From Samara, Russia
Common russian riichi rating (CRR)
Rating date March 29, 2025 (latest changes March 26, 2025).
44 place (578.70).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (710.28 * 4 * 0.43 + 420.56 * 4.60 * 1 + 893.62 * 2.80 * 1 + 405.06 * 3.65 * 1 + 494.38 * 3.75 * 1 + 71.43 * 2.60 * 1 + 1000 * 3.25 * 1) / (4 * 0.43 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.75 * 1 + 2.60 * 1 + 3.25 * 1) = 555.4600168124339
p2 = (1000 * 3.25 * 1 + 893.62 * 2.80 * 1 + 420.56 * 4.60 * 1 + 494.38 * 3.75 * 1) / max_coefficients = 601.9331230283912
score = 555.4600168124339 * 0.5 + 601.9331230283912 * 0.5 = 578.6965699204125
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-10 | 45 -> 44 | 578.70 | |
| 2025-03-05 | 46 -> 45 | 578.70 | |
| 2025-03-03 | 47 -> 46 | 580.62 -> 578.70 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 45 -> 47 | 580.62 | |
| 2025-02-25 | 46 -> 45 | 580.62 | |
| 2025-02-16 | 64 -> 46 | 492.94 -> 580.62 |
White Wolf Cup: 0% -> 100% |
| 2025-02-11 | 65 -> 64 | 492.94 | |
| 2025-02-02 | 63 -> 65 | 492.94 | |
| 2025-01-26 | 54 -> 63 | 524.52 -> 492.94 |
Riichi On Ice: 0% -> 100% |
| 2025-01-07 | 52 -> 54 | 524.52 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 1000 |
|
1/60 | 100% | 3.25 | RR | White Wolf Cup |
| 2 | 71 |
|
40/43 | 100% | 2.60 | RR | Riichi On Ice |
| 3 | 494 |
|
46/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 4 | 405 |
|
48/80 | 100% | 3.65 | RR | Riichi over Volga |
| 5 | 894 |
|
6/48 | 100% | 2.80 | RR | Guardian of the Winds |
| 6 | 421 |
|
63/108 | 100% | 4.60 | RR | X Russian Championship |
| 7 | 710 |
|
32/108 | 43% | 4.00 | RR | SPB Riichi Open 2023 |