Epifanova Anna
From Saratov, Russia
Common russian riichi rating (CRR)
Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).
182 place (268.22).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
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 = 213.68050573403804
score = 322.76631578947365 * 0.5 + 213.68050573403804 * 0.5 = 268.2234107617559
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-13 | 182 | 264.97 -> 268.22 | |
| 2025-09-30 | 183 -> 182 | 264.97 | |
| 2025-09-25 | 184 -> 183 | 264.97 | |
| 2025-09-14 | 185 -> 184 | 264.97 | |
| 2025-09-12 | 188 -> 185 | 264.97 | |
| 2025-09-03 | 189 -> 188 | 264.97 | |
| 2025-09-01 | 190 -> 189 | 262.25 -> 264.97 | |
| 2025-08-31 | 186 -> 190 | 262.25 | |
| 2025-08-26 | 188 -> 186 | 262.25 | |
| 2025-08-25 | 189 -> 188 | 262.25 |
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 |