Epifanova Anna
From Saratov, Russia
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
156 place (264.97).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
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 = 207.18108108108106
score = 322.76631578947365 * 0.5 + 207.18108108108106 * 0.5 = 264.97369843527736
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 157 -> 156 | 264.97 | |
| 2025-09-01 | 158 -> 157 | 262.25 -> 264.97 | |
| 2025-08-31 | 153 -> 158 | 262.25 | |
| 2025-08-04 | 153 | 261.26 -> 262.25 | |
| 2025-08-03 | 153 | 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 |