Epifanova Anna
From Saratov, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
185 place (263.93).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
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 = 205.10234113712374
score = 322.76631578947365 * 0.5 + 205.10234113712374 * 0.5 = 263.9343284632987
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-05 | 187 -> 185 | 263.93 | |
| 2025-11-04 | 181 -> 187 | 268.60 -> 263.93 | |
| 2025-11-01 | 182 -> 181 | 268.22 -> 268.60 | |
| 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 |
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 |