Voil Anna
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 1, 2025 (latest changes Sept. 1, 2025).
185 place (195.09).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (373.83 * 4 * 0.14 + 571.43 * 2.60 * 1 + 0 + 0 + 0) / (4 * 0.14 + 2.60 * 1 + 1 + 1 + 1) = 275.3564715794932
p2 = (571.43 * 2.60 * 1 + 373.83 * 4 * 0.14) / max_coefficients = 114.82364864864866
score = 275.3564715794932 * 0.5 + 114.82364864864866 * 0.5 = 195.09006011407092
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-01 | 185 | 193.58 -> 195.09 | |
| 2025-08-31 | 179 -> 185 | 193.58 | |
| 2025-08-04 | 180 -> 179 | 193.03 -> 193.58 | |
| 2025-08-03 | 175 -> 180 | 193.03 | |
| 2025-07-13 | 171 -> 175 | 193.03 | |
| 2025-07-12 | 171 | 192.00 -> 193.03 | |
| 2025-07-10 | 172 -> 171 | 192.00 | |
| 2025-07-03 | 169 -> 172 | 202.99 -> 192.00 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 155 -> 169 | 204.80 -> 202.99 | |
| 2025-06-11 | 165 -> 155 | 204.80 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 571 |
|
19/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 2 | 374 |
|
68/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 3 | 9 |
|
111/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |