Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date Feb. 25, 2024 (latest changes Feb. 25, 2024).
80 place (347.29).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (923.08 * 1.80 * 0.57 + 741.94 * 1.80 * 0.86 + 565.22 * 1.40 * 1 + 0 + 0) / (1.80 * 0.57 + 1.80 * 0.86 + 1.40 * 1 + 1 + 1) = 483.20131294692953
p2 = (741.94 * 1.80 * 0.86 + 923.08 * 1.80 * 0.57 + 565.22 * 1.40 * 1) / max_coefficients = 211.3792906404807
score = 483.20131294692953 * 0.5 + 211.3792906404807 * 0.5 = 347.2903017937051
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-25 | 73 -> 80 | 359.62 -> 347.29 |
Earth cup: 100% -> 86% |
| 2024-02-12 | 75 -> 73 | 359.62 | |
| 2024-01-20 | 76 -> 75 | 359.62 | |
| 2024-01-06 | 78 -> 76 | 354.88 -> 359.62 | |
| 2023-12-27 | 75 -> 78 | 371.72 -> 354.88 |
Sun tournament: 71% -> 57% |
| 2023-12-12 | 76 -> 75 | 371.72 | |
| 2023-11-28 | 53 -> 76 | 448.79 -> 371.72 |
Saint Petersburg Open 2021: 14% -> 0% |
| 2023-11-26 | 50 -> 53 | 449.73 -> 448.79 | |
| 2023-11-20 | 51 -> 50 | 449.73 | |
| 2023-11-06 | 51 | 444.29 -> 449.73 |