Epifanova Anna
From Saratov, Russia
Internal rating (RR)
Rating date Oct. 9, 2026 (latest changes Oct. 8, 2026).
193 place (223.17).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (557.14 * 3.50 * 0.57 + 372.09 * 3 * 0.71 + 181.82 * 3 * 1 + 142.86 * 2.90 * 1 + 0) / (3.50 * 0.57 + 3 * 0.71 + 3 * 1 + 2.90 * 1 + 1) = 260.0182924620567
p2 = (557.14 * 3.50 * 0.57 + 372.09 * 3 * 0.71 + 181.82 * 3 * 1 + 142.86 * 2.90 * 1) / max_coefficients = 186.32900713822193
score = 260.0182924620567 * 0.5 + 186.32900713822193 * 0.5 = 223.17364980013932
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-03 | 192 -> 193 | 230.44 -> 223.17 |
Two roosters and Chuckles: 86% -> 71% |
| 2026-09-06 | 185 -> 192 | 230.44 | |
| 2026-09-03 | 177 -> 185 | 245.60 -> 230.44 |
Riichi over The Volga 2025: 71% -> 57% |
| 2026-09-01 | 178 -> 177 | 245.60 | |
| 2026-08-31 | 178 | 245.25 -> 245.60 | |
| 2026-08-27 | 177 -> 178 | 245.25 | |
| 2026-08-15 | 178 -> 177 | 244.47 -> 245.25 | |
| 2026-08-13 | 179 -> 178 | 244.47 | |
| 2026-08-04 | 181 -> 179 | 244.47 | |
| 2026-08-03 | 181 | 251.24 -> 244.47 |
Two roosters and Chuckles: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 143 |
|
37/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 2 | 182 |
|
46/56 | 100% | 3.00 | RR | Riichi On Ice 2026 | Samara | |
| 3 | 372 |
|
28/44 | 71% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 4 | 557 |
|
32/71 | 57% | 3.50 | RR | Riichi over The Volga 2025 | Samara |