Andreeva Anna
From Irkutsk, Russia
Common russian riichi rating (CRR)
Rating date Jan. 14, 2023 (latest changes Jan. 14, 2023).
131 place (74.76).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (66.67 * 1.20 * 0.86 + 454.55 * 1.10 * 1 + 0 + 0 + 0) / (1.20 * 0.86 + 1.10 * 1 + 1 + 1 + 1) = 110.86434292934413
p2 = (454.55 * 1.10 * 1 + 66.67 * 1.20 * 0.86) / max_coefficients = 38.659834996884136
score = 110.86434292934413 * 0.5 + 38.659834996884136 * 0.5 = 74.76208896311414
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-01-14 | 127 -> 131 | 74.76 | |
| 2023-01-05 | 129 -> 127 | 74.44 -> 74.76 |
Winter tournament: 100% -> 86% |
| 2023-01-03 | 133 -> 129 | 74.44 | |
| 2022-12-19 | 133 | 74.25 -> 74.44 | |
| 2022-12-18 | 131 -> 133 | 74.25 | |
| 2022-11-28 | 131 | 73.80 -> 74.25 | |
| 2022-11-06 | 110 -> 131 | 75.00 -> 73.80 | |
| 2022-11-03 | 111 -> 110 | 75.00 | |
| 2022-08-27 | 100 -> 111 | 75.00 | |
| 2022-08-20 | 98 -> 100 | 75.00 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 455 |
|
7/12 | 100% | 1.10 | CRR | Summer tournament |
| 2 | 67 |
|
15/16 | 86% | 1.20 | CRR | Winter tournament |