Stolbova Anastasiya
From Tyumen, Russia
EMA: 15020037
Common russian riichi rating (CRR)
Rating date July 12, 2025 (latest changes July 12, 2025).
220 place (187.23).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (361.70 * 2.80 * 1 + 434.78 * 2.20 * 1 + 0 + 0 + 0) / (2.80 * 1 + 2.20 * 1 + 1 + 1 + 1) = 246.16125
p2 = (361.70 * 2.80 * 1 + 434.78 * 2.20 * 1) / max_coefficients = 128.29250814332246
score = 246.16125 * 0.5 + 128.29250814332246 * 0.5 = 187.22687907166124
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-12 | 220 | 186.03 -> 187.23 | |
| 2025-07-03 | 223 -> 220 | 186.03 | |
| 2025-06-27 | 224 -> 223 | 186.03 | |
| 2025-06-25 | 225 -> 224 | 186.03 | |
| 2025-06-15 | 216 -> 225 | 187.89 -> 186.03 | |
| 2025-06-14 | 210 -> 216 | 187.89 | |
| 2025-06-11 | 216 -> 210 | 187.89 | |
| 2025-05-17 | 214 -> 216 | 187.89 | |
| 2025-05-12 | 214 | 185.20 -> 187.89 | |
| 2025-05-03 | 211 -> 214 | 185.20 |