Shpilman Anna
From Saint Petersburg, Russia
EMA: 15990070
Internal rating (RR)
Rating date Aug. 23, 2025 (latest changes Aug. 9, 2025).
174 place (205.06).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (336.45 * 4 * 0.14 + 666.67 * 3.05 * 0.71 + 157.89 * 3.85 * 1 + 0 + 0) / (4 * 0.14 + 3.05 * 0.71 + 3.85 * 1 + 1 + 1) = 261.9248472276565
p2 = (666.67 * 3.05 * 0.71 + 157.89 * 3.85 * 1 + 336.45 * 4 * 0.14) / max_coefficients = 148.1980263157895
score = 261.9248472276565 * 0.5 + 148.1980263157895 * 0.5 = 205.061436771723
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-09 | 171 -> 174 | 224.37 -> 205.06 |
Agari Summer Tournament 2024: 86% -> 71% |
2025-08-04 | 171 | 223.55 -> 224.37 | |
2025-08-03 | 165 -> 171 | 223.55 | |
2025-07-30 | 167 -> 165 | 223.55 | |
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% |