Nemchinova Alena
From Samara, Russia
Internal rating (RR)
Rating date May 6, 2025 (latest changes May 3, 2025).
45 place (573.11).
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 * 0.29 + 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 + 500 * 3.50 * 1) / (4 * 0.29 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.75 * 1 + 2.60 * 1 + 3.25 * 1 + 3.50 * 1) = 544.2869116902833
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 = 544.2869116902833 * 0.5 + 601.9331230283912 * 0.5 = 573.1100173593372
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-05-03 | 44 -> 45 | 578.70 -> 573.11 |
Riichi over The Volga 2025: 0% -> 100% SPB Riichi Open 2023: 43% -> 29% |
2025-04-26 | 42 -> 44 | 578.70 | |
2025-03-03 | 42 | 580.62 -> 578.70 |
SPB Riichi Open 2023: 57% -> 43% |
2025-03-02 | 41 -> 42 | 580.62 | |
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% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
---|---|---|---|---|---|---|---|---|
1 | 500 |
|
36/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
2 | 1000 |
|
1/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
3 | 71 |
|
40/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
4 | 494 |
|
46/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
5 | 405 |
|
48/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |
6 | 894 |
|
6/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
7 | 421 |
|
63/108 | 100% | 4.60 | RR | X Russian Championship | Perm |
8 | 710 |
|
32/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |