Nemchinova Alena
From Samara, Russia
Common russian riichi rating (CRR)
Rating date April 20, 2026 (latest changes April 19, 2026).
21 place (683.85).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (420.56 * 4.60 * 0.14 + 893.62 * 2.80 * 0.29 + 405.06 * 3.65 * 0.29 + 494.38 * 3.75 * 0.43 + 71.43 * 2.60 * 0.71 + 1000 * 3.25 * 0.71 + 500 * 3.50 * 1 + 835.82 * 4.10 * 1 + 674.42 * 3 * 1 + 483.87 * 3 * 1 + 1000 * 3 * 1 + 580 * 3.10 * 1) / (4.60 * 0.14 + 2.80 * 0.29 + 3.65 * 0.29 + 3.75 * 0.43 + 2.60 * 0.71 + 3.25 * 0.71 + 3.50 * 1 + 4.10 * 1 + 3 * 1 + 3 * 1 + 3 * 1 + 3.10 * 1) = 647.1872910786498
p2 = (835.82 * 4.10 * 1 + 1000 * 3 * 1 + 1000 * 3.25 * 0.71 + 674.42 * 3 * 1) / max_coefficients = 720.5090301003345
score = 647.1872910786498 * 0.5 + 720.5090301003345 * 0.5 = 683.8481605894922
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-16 | 17 -> 21 | 702.25 -> 683.85 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 18 -> 17 | 700.78 -> 702.25 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 17 -> 18 | 700.78 | |
| 2026-04-05 | 15 -> 17 | 704.98 -> 700.78 |
Moscow Riichi 2026: 0% -> 100% |
| 2026-04-04 | 15 | 702.47 -> 704.98 |
Riichi over Volga: 43% -> 29% |
| 2026-04-02 | 17 -> 15 | 702.47 | |
| 2026-03-26 | 18 -> 17 | 700.72 -> 702.47 |
Riichi On Ice: 86% -> 71% |
| 2026-03-25 | 17 -> 18 | 700.72 | |
| 2026-03-14 | 17 | 702.44 -> 700.72 |
Guardian of the Winds: 43% -> 29% |
| 2026-03-12 | 17 | 699.81 -> 702.44 |
X Russian Championship: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 580 |
|
22/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 2 | 1000 |
|
🥇 | 1/56 | 100% | 3.00 | RR | Riichi On Ice 2026 | Samara |
| 3 | 484 |
|
17/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 4 | 312 |
|
54/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 5 | 674 |
|
15/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 6 | 836 |
|
12/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 7 | 500 |
|
36/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 8 | 1000 |
|
🥇 | 1/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
| 9 | 71 |
|
40/43 | 71% | 2.60 | RR | Riichi On Ice | Samara | |
| 10 | 494 |
|
46/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 11 | 405 |
|
48/80 | 29% | 3.65 | RR | Riichi over Volga | Samara | |
| 12 | 894 |
|
6/48 | 29% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 13 | 421 |
|
63/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 14 | 710 |
|
32/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |