Zheleznyakova Anna
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Dec. 29, 2025 (latest changes Dec. 29, 2025).
174 place (292.02).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (800 * 1.80 * 0.71 + 600 * 2 * 1 + 43.48 * 1.20 * 1 + 347.83 * 1.20 * 1 + 0) / (1.80 * 0.71 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 1) = 403.56789226024347
p2 = (600 * 2 * 1 + 800 * 1.80 * 0.71 + 347.83 * 1.20 * 1 + 43.48 * 1.20 * 1) / max_coefficients = 180.47826086956522
score = 403.56789226024347 * 0.5 + 180.47826086956522 * 0.5 = 292.02307656490433
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-29 | 175 -> 174 | 292.02 | |
| 2025-12-27 | 162 -> 175 | 306.24 -> 292.02 |
Happy Bamboo 2024: 86% -> 71% |
| 2025-12-25 | 163 -> 162 | 306.24 | |
| 2025-12-13 | 164 -> 163 | 306.24 | |
| 2025-12-07 | 157 -> 164 | 306.24 | |
| 2025-12-06 | 180 -> 157 | 267.53 -> 306.24 |
Riichi on fire: 0% -> 100% |
| 2025-12-04 | 182 -> 180 | 267.53 | |
| 2025-11-30 | 184 -> 182 | 267.53 | |
| 2025-11-25 | 185 -> 184 | 267.53 | |
| 2025-11-22 | 182 -> 185 | 267.53 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 348 |
|
16/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol | |
| 2 | 43 |
|
23/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 3 | 600 |
|
7/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 4 | 800 |
|
4/16 | 71% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |