Zheleznyakova Anna
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Nov. 1, 2025 (latest changes Nov. 1, 2025).
180 place (271.31).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3
p1 = (800 * 1.80 * 0.86 + 600 * 2 * 1 + 43.48 * 1.20 * 1 + 0 + 0) / (1.80 * 0.86 + 2 * 1 + 1.20 * 1 + 1 + 1) = 368.7484983938376
p2 = (800 * 1.80 * 0.86 + 600 * 2 * 1 + 43.48 * 1.20 * 1) / max_coefficients = 173.8734265734266
score = 368.7484983938376 * 0.5 + 173.8734265734266 * 0.5 = 271.3109624836321
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-01 | 180 | 271.01 -> 271.31 | |
| 2025-10-27 | 171 -> 180 | 286.10 -> 271.01 |
Happy Bamboo 2024: 100% -> 86% |
| 2025-10-13 | 172 -> 171 | 283.25 -> 286.10 | |
| 2025-10-04 | 173 -> 172 | 283.25 | |
| 2025-09-30 | 174 -> 173 | 283.25 | |
| 2025-09-19 | 175 -> 174 | 283.25 | |
| 2025-09-12 | 174 -> 175 | 283.25 | |
| 2025-09-05 | 175 -> 174 | 283.25 | |
| 2025-09-03 | 177 -> 175 | 283.25 | |
| 2025-09-01 | 178 -> 177 | 280.86 -> 283.25 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 43 |
|
23/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 2 | 600 |
|
7/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 3 | 800 |
|
4/16 | 86% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |