Zheleznyakova Anna
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).
171 place (286.10).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
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 = 187.60982269134104
score = 384.5957142857143 * 0.5 + 187.60982269134104 * 0.5 = 286.10276848852766
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-08-31 | 175 -> 178 | 280.86 | |
| 2025-08-26 | 177 -> 175 | 280.86 |
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 |