Nemchinova Alena
From Samara, Russia
Internal rating (RR)
Rating date Feb. 16, 2025 (latest changes Feb. 16, 2025).
41 place (580.62).
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 * 0.57 + 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 * 0.57 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.75 * 1 + 2.60 * 1 + 3.25 * 1) = 559.3160850381066
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 = 559.3160850381066 * 0.5 + 601.9331230283912 * 0.5 = 580.6246040332489
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-16 | 60 -> 41 | 492.94 -> 580.62 |
White Wolf Cup: 0% -> 100% |
| 2025-02-02 | 57 -> 60 | 492.94 | |
| 2025-01-26 | 45 -> 57 | 524.52 -> 492.94 |
Riichi On Ice: 0% -> 100% |
| 2025-01-03 | 44 -> 45 | 539.93 -> 524.52 |
SPB Riichi Open 2023: 71% -> 57% |
| 2024-11-06 | 46 -> 44 | 539.93 | |
| 2024-11-03 | 43 -> 46 | 555.16 -> 539.93 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-13 | 43 | 538.61 -> 555.16 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-10-11 | 45 -> 43 | 538.61 | |
| 2024-09-06 | 46 -> 45 | 538.61 | |
| 2024-09-03 | 42 -> 46 | 544.72 -> 538.61 |
SPB Riichi Open 2023: 100% -> 86% |
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 | 57% | 4.00 | RR | SPB Riichi Open 2023 |