Epifanova Anna
From Saratov, Russia
Common russian riichi rating (CRR)
Rating date Aug. 11, 2025 (latest changes Aug. 9, 2025).
189 place (262.25).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (557.14 * 3.50 * 1 + 372.09 * 3 * 1 + 0 + 0 + 0) / (3.50 * 1 + 3 * 1 + 1 + 1 + 1) = 322.76631578947365
p2 = (557.14 * 3.50 * 1 + 372.09 * 3 * 1) / max_coefficients = 201.72894736842105
score = 322.76631578947365 * 0.5 + 201.72894736842105 * 0.5 = 262.24763157894733
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 189 | 261.26 -> 262.25 | |
| 2025-08-03 | 189 | 261.26 |
Two roosters and Chuckles: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 372 |
|
28/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 2 | 557 |
|
32/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |