Druzhinina Alexandra
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date March 10, 2025 (latest changes March 10, 2025).
145 place (300.04).
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 * 0.86 + 956.52 * 2.10 * 1 + 645.16 * 1.80 * 1 + 0 + 0) / (3.05 * 0.86 + 2.10 * 1 + 1.80 * 1 + 1 + 1) = 390.38048990181653
p2 = (956.52 * 2.10 * 1 + 645.16 * 1.80 * 1 + 58.82 * 3.05 * 0.86) / max_coefficients = 209.70094637223974
score = 390.38048990181653 * 0.5 + 209.70094637223974 * 0.5 = 300.04071813702814
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-10 | 145 | 292.78 -> 300.04 |
Agari Spring Tournament 2024: 100% -> 86% |
| 2025-03-05 | 146 -> 145 | 292.78 | |
| 2025-03-03 | 150 -> 146 | 292.78 | |
| 2025-03-02 | 147 -> 150 | 292.78 | |
| 2025-02-25 | 148 -> 147 | 292.78 | |
| 2025-02-16 | 141 -> 148 | 292.78 | |
| 2025-02-11 | 143 -> 141 | 292.78 | |
| 2025-02-02 | 138 -> 143 | 292.78 | |
| 2025-01-26 | 134 -> 138 | 292.78 | |
| 2025-01-07 | 131 -> 134 | 292.78 |
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 | 86% | 3.05 | RR | Agari Spring Tournament 2024 |