Knyazeva Anna
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
131 place (321.40).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (784.31 * 3.05 * 0.57 + 158.88 * 4.60 * 0.71 + 98.04 * 3.05 * 0.71 + 573.03 * 3.75 * 1 + 0) / (3.05 * 0.57 + 4.60 * 0.71 + 3.05 * 0.71 + 3.75 * 1 + 1) = 355.551671320083
p2 = (573.03 * 3.75 * 1 + 784.31 * 3.05 * 0.57 + 158.88 * 4.60 * 0.71 + 98.04 * 3.05 * 0.71) / max_coefficients = 287.2560810810811
score = 355.551671320083 * 0.5 + 287.2560810810811 * 0.5 = 321.4038762005821
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 125 -> 131 | 343.88 -> 321.40 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 126 -> 125 | 340.02 -> 343.88 | |
| 2025-08-31 | 122 -> 126 | 340.02 | |
| 2025-08-09 | 127 -> 122 | 334.62 -> 340.02 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 128 -> 127 | 333.23 -> 334.62 | |
| 2025-08-03 | 126 -> 128 | 333.23 | |
| 2025-07-30 | 125 -> 126 | 333.23 | |
| 2025-07-14 | 126 -> 125 | 333.23 | |
| 2025-07-13 | 123 -> 126 | 333.23 | |
| 2025-07-12 | 123 | 328.06 -> 333.23 |
X Russian Championship: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 573 |
|
39/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 2 | 98 |
|
47/52 | 71% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 3 | 159 |
|
91/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 784 |
|
12/52 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 5 | 523 |
|
52/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 6 | 609 |
|
35/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 7 | 867 |
|
11/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 8 | 90 |
|
102/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |