Shpilman Anna
From Saint Petersburg, Russia
EMA: 15990070
Internal rating (RR)
Rating date July 14, 2025 (latest changes July 14, 2025).
167 place (223.55).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (336.45 * 4 * 0.14 + 666.67 * 3.05 * 0.86 + 157.89 * 3.85 * 1 + 0 + 0) / (4 * 0.14 + 3.05 * 0.86 + 3.85 * 1 + 1 + 1) = 281.4341468975199
p2 = (666.67 * 3.05 * 0.86 + 157.89 * 3.85 * 1 + 336.45 * 4 * 0.14) / max_coefficients = 165.6657980456026
score = 281.4341468975199 * 0.5 + 165.6657980456026 * 0.5 = 223.54997247156126
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-07-13 | 164 -> 167 | 223.55 | |
2025-07-12 | 164 | 222.00 -> 223.55 | |
2025-07-03 | 163 -> 164 | 229.78 -> 222.00 |
SPB Riichi Open 2023: 29% -> 14% |
2025-06-15 | 150 -> 163 | 232.37 -> 229.78 | |
2025-06-11 | 156 -> 150 | 232.37 | |
2025-06-09 | 153 -> 156 | 250.22 -> 232.37 |
Agari Summer Tournament 2024: 100% -> 86% |
2025-06-08 | 152 -> 153 | 250.22 | |
2025-05-12 | 153 -> 152 | 246.09 -> 250.22 | |
2025-05-03 | 148 -> 153 | 253.10 -> 246.09 |
SPB Riichi Open 2023: 43% -> 29% |
2025-04-26 | 145 -> 148 | 253.10 |