Nemchinova Alena
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Aug. 5, 2026 (latest changes Aug. 4, 2026).
41 place (624.74).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (494.38 * 3.75 * 0.29 + 71.43 * 2.60 * 0.43 + 1000 * 3.25 * 0.57 + 500 * 3.50 * 0.71 + 835.82 * 4.10 * 0.86 + 674.42 * 3 * 0.86 + 483.87 * 3 * 1 + 1000 * 3 * 1 + 580 * 3.10 * 1 + 333.33 * 2.90 * 1) / (3.75 * 0.29 + 2.60 * 0.43 + 3.25 * 0.57 + 3.50 * 0.71 + 4.10 * 0.86 + 3 * 0.86 + 3 * 1 + 3 * 1 + 3.10 * 1 + 2.90 * 1) = 633.5786411090194
p2 = (1000 * 3 * 1 + 835.82 * 4.10 * 0.86 + 1000 * 3.25 * 0.57 + 580 * 3.10 * 1) / max_coefficients = 615.9080679409611
score = 633.5786411090194 * 0.5 + 615.9080679409611 * 0.5 = 624.7433545249903
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-04 | 43 -> 41 | 622.37 -> 624.74 |
Riichi over Volga: 14% -> 0% |
| 2026-08-03 | 41 -> 43 | 629.99 -> 622.37 |
Two roosters and Chuckles: 100% -> 86% |
| 2026-08-02 | 40 -> 41 | 629.99 | |
| 2026-07-26 | 40 | 625.99 -> 629.99 |
Riichi On Ice: 57% -> 43% |
| 2026-07-25 | 39 -> 40 | 625.99 | |
| 2026-07-14 | 39 | 628.06 -> 625.99 |
Guardian of the Winds: 14% -> 0% |
| 2026-07-13 | 40 -> 39 | 628.06 | |
| 2026-07-12 | 39 -> 40 | 628.06 | |
| 2026-07-07 | 40 -> 39 | 628.06 | |
| 2026-07-03 | 41 -> 40 | 626.89 -> 628.06 |
Riichi over The Volga 2025: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 333 |
|
29/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 2 | 580 |
|
22/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 3 | 1000 |
|
🥇 | 1/56 | 100% | 3.00 | RR | Riichi On Ice 2026 | Samara |
| 4 | 484 |
|
17/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 5 | 312 |
|
54/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 6 | 674 |
|
15/44 | 86% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 7 | 836 |
|
12/68 | 86% | 4.10 | RR | 13 bloody tiles | Perm | |
| 8 | 500 |
|
36/71 | 71% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 9 | 1000 |
|
🥇 | 1/60 | 57% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
| 10 | 71 |
|
40/43 | 43% | 2.60 | RR | Riichi On Ice | Samara | |
| 11 | 494 |
|
46/90 | 29% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 12 | 405 |
|
48/80 | 0% | 3.65 | RR | Riichi over Volga | Samara | |
| 13 | 894 |
|
6/48 | 0% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 14 | 421 |
|
63/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 15 | 710 |
|
32/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |