Voil Anna
From Moscow, Russia
Internal rating (RR)
Rating date July 3, 2025 (latest changes July 3, 2025).
172 place (192.00).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
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 = 108.63817279158405
score = 275.3564715794932 * 0.5 + 108.63817279158405 * 0.5 = 191.99732218553862
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-06-09 | 166 -> 165 | 204.80 | |
| 2025-05-12 | 168 -> 166 | 202.19 -> 204.80 | |
| 2025-05-03 | 161 -> 168 | 212.46 -> 202.19 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-27 | 160 -> 161 | 212.46 | |
| 2025-04-26 | 159 -> 160 | 212.46 | |
| 2025-04-11 | 162 -> 159 | 212.46 | |
| 2025-03-30 | 163 -> 162 | 212.46 |
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 |