Zheleznyakova Anna
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Aug. 23, 2025 (latest changes Aug. 22, 2025).
181 place (280.86).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (800 * 1.80 * 1 + 600 * 2 * 1 + 43.48 * 1.20 * 1 + 0 + 0) / (1.80 * 1 + 2 * 1 + 1.20 * 1 + 1 + 1) = 384.5957142857143
p2 = (800 * 1.80 * 1 + 600 * 2 * 1 + 43.48 * 1.20 * 1) / max_coefficients = 177.11644736842106
score = 384.5957142857143 * 0.5 + 177.11644736842106 * 0.5 = 280.8560808270677
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 180 -> 181 | 279.99 -> 280.86 | |
| 2025-08-03 | 174 -> 180 | 279.99 | |
| 2025-07-26 | 172 -> 174 | 280.11 -> 279.99 |
Pands in discards: 0% -> 100% |
| 2025-07-14 | 173 -> 172 | 280.11 | |
| 2025-07-13 | 170 -> 173 | 280.11 | |
| 2025-07-12 | 171 -> 170 | 278.50 -> 280.11 | |
| 2025-07-03 | 174 -> 171 | 278.50 | |
| 2025-06-15 | 167 -> 174 | 281.00 -> 278.50 | |
| 2025-06-14 | 164 -> 167 | 281.00 | |
| 2025-06-11 | 168 -> 164 | 281.00 |
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 | 100% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |