Epifanova Anna
From Saratov, Russia
Common russian riichi rating (CRR)
Rating date Sept. 20, 2026 (latest changes Sept. 17, 2026).
187 place (311.67).
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 * 0.86 + 900 * 1.50 * 1 + 181.82 * 3 * 1 + 142.86 * 2.90 * 1) / (3.50 * 0.57 + 3 * 0.86 + 1.50 * 1 + 3 * 1 + 2.90 * 1) = 365.9390871424752
p2 = (900 * 1.50 * 1 + 557.14 * 3.50 * 0.57 + 372.09 * 3 * 0.86 + 181.82 * 3 * 1) / max_coefficients = 257.3939000648929
score = 365.9390871424752 * 0.5 + 257.3939000648929 * 0.5 = 311.66649360368405
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-09-06 | 181 -> 187 | 311.67 | |
| 2026-09-03 | 175 -> 181 | 324.54 -> 311.67 |
Riichi over The Volga 2025: 71% -> 57% |
| 2026-09-01 | 176 -> 175 | 324.54 | |
| 2026-08-31 | 176 | 324.10 -> 324.54 | |
| 2026-08-30 | 174 -> 176 | 324.10 | |
| 2026-08-27 | 175 -> 174 | 324.10 | |
| 2026-08-26 | 176 -> 175 | 324.10 | |
| 2026-08-16 | 173 -> 176 | 324.10 | |
| 2026-08-15 | 173 | 323.09 -> 324.10 | |
| 2026-08-13 | 174 -> 173 | 323.09 |
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 | 900 |
|
🥉 | 3/21 | 100% | 1.50 | CRR | San-Biki Cup | Saratov |
| 4 | 372 |
|
28/44 | 86% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 5 | 557 |
|
32/71 | 57% | 3.50 | RR | Riichi over The Volga 2025 | Samara |