Knyazeva Anna
From Moscow, Russia
Internal rating (RR)
Rating date March 31, 2025 (latest changes March 30, 2025).
101 place (385.58).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (609.20 * 3.75 * 0.29 + 523.36 * 4 * 0.43 + 784.31 * 3.05 * 0.86 + 158.88 * 4.60 * 1 + 98.04 * 3.05 * 1 + 573.03 * 3.75 * 1) / (3.75 * 0.29 + 4 * 0.43 + 3.05 * 0.86 + 4.60 * 1 + 3.05 * 1 + 3.75 * 1) = 403.51358606851346
p2 = (573.03 * 3.75 * 1 + 784.31 * 3.05 * 0.86 + 523.36 * 4 * 0.43 + 158.88 * 4.60 * 1) / max_coefficients = 367.65299684542595
score = 403.51358606851346 * 0.5 + 367.65299684542595 * 0.5 = 385.58329145696973
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-10 | 96 -> 101 | 401.18 -> 385.58 |
Agari Spring Tournament 2024: 100% -> 86% |
| 2025-03-03 | 94 -> 96 | 412.38 -> 401.18 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 91 -> 94 | 412.38 | |
| 2025-02-16 | 86 -> 91 | 412.38 | |
| 2025-02-11 | 84 -> 86 | 423.02 -> 412.38 |
Money can not buy tenpai: 43% -> 29% |
| 2025-02-02 | 80 -> 84 | 423.02 | |
| 2025-01-26 | 76 -> 80 | 423.02 | |
| 2025-01-07 | 73 -> 76 | 423.02 | |
| 2025-01-03 | 69 -> 73 | 433.99 -> 423.02 |
SPB Riichi Open 2023: 71% -> 57% |
| 2024-12-11 | 67 -> 69 | 446.81 -> 433.99 |
Money can not buy tenpai: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 573 |
|
39/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 2 | 98 |
|
47/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 3 | 159 |
|
91/108 | 100% | 4.60 | RR | X Russian Championship |
| 4 | 784 |
|
12/52 | 86% | 3.05 | RR | Agari Spring Tournament 2024 |
| 5 | 523 |
|
52/108 | 43% | 4.00 | RR | SPB Riichi Open 2023 |
| 6 | 609 |
|
35/88 | 29% | 3.75 | RR | Money can not buy tenpai |
| 7 | 867 |
|
11/76 | 0% | 4.20 | RR | IX Russian Riichi Championship |
| 8 | 90 |
|
102/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |