Shpilman Anna
From Saint Petersburg, Russia
EMA: 15990070
Internal rating (RR)
Rating date July 10, 2025 (latest changes July 10, 2025).
164 place (222.00).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
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 = 162.566341018727
score = 281.4341468975199 * 0.5 + 162.566341018727 * 0.5 = 222.00024395812346
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2025-04-11 | 146 -> 145 | 253.10 | |
2025-03-03 | 143 -> 146 | 260.02 -> 253.10 |
SPB Riichi Open 2023: 57% -> 43% |