Druzhinina Alexandra
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Jan. 5, 2025 (latest changes Jan. 5, 2025).
131 place (292.78).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (58.82 * 3.05 * 1 + 956.52 * 2.10 * 1 + 645.16 * 1.80 * 1 + 0 + 0) / (3.05 * 1 + 2.10 * 1 + 1.80 * 1 + 1 + 1) = 374.2346368715084
p2 = (956.52 * 2.10 * 1 + 645.16 * 1.80 * 1 + 58.82 * 3.05 * 1) / max_coefficients = 211.31861198738167
score = 374.2346368715084 * 0.5 + 211.31861198738167 * 0.5 = 292.77662442944506
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-05 | 132 -> 131 | 292.78 | |
| 2025-01-04 | 130 -> 132 | 292.78 | |
| 2025-01-03 | 131 -> 130 | 292.78 | |
| 2024-12-25 | 133 -> 131 | 292.78 | |
| 2024-12-11 | 134 -> 133 | 292.78 | |
| 2024-11-05 | 137 -> 134 | 292.78 | |
| 2024-10-25 | 138 -> 137 | 292.78 | |
| 2024-10-13 | 131 -> 138 | 294.96 -> 292.78 | |
| 2024-10-11 | 133 -> 131 | 294.96 | |
| 2024-09-15 | 131 -> 133 | 294.96 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 645 |
|
12/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
| 2 | 957 |
|
3/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 3 | 59 |
|
49/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |