Sotnikova Anna
From Kirov, Russia
Common russian riichi rating (CRR)
Rating date Aug. 3, 2025 (latest changes Aug. 3, 2025).
231 place (183.26).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (157.89 * 1.50 * 1 + 419.35 * 3.10 * 1 + 209.30 * 3 * 1 + 0 + 0) / (1.50 * 1 + 3.10 * 1 + 3 * 1 + 1 + 1) = 225.49479166666669
p2 = (419.35 * 3.10 * 1 + 209.30 * 3 * 1 + 157.89 * 1.50 * 1) / max_coefficients = 141.0260586319218
score = 225.49479166666669 * 0.5 + 141.0260586319218 * 0.5 = 183.26042514929424
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-03 | 242 -> 231 | 151.17 -> 183.26 |
Two roosters and Chuckles: 0% -> 100% |
| 2025-07-26 | 240 -> 242 | 151.17 | |
| 2025-07-19 | 241 -> 240 | 151.17 | |
| 2025-07-13 | 239 -> 241 | 151.17 | |
| 2025-07-12 | 239 | 150.23 -> 151.17 | |
| 2025-06-22 | 241 -> 239 | 150.23 | |
| 2025-06-15 | 232 -> 241 | 151.69 -> 150.23 | |
| 2025-06-14 | 225 -> 232 | 151.69 | |
| 2025-06-11 | 231 -> 225 | 151.69 | |
| 2025-05-26 | 232 -> 231 | 151.69 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 209 |
|
35/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 2 | 419 |
|
19/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 3 | 158 |
|
17/20 | 100% | 1.50 | CRR | Dirty Riichi | Kirov | |
| 4 | 267 |
|
12/16 | 0% | 1.20 | CRR | I still can declare riichi | Kirov | |
| 5 | 667 |
|
6/16 | 0% | 1.20 | CRR | Vyatka rooster | Kirov | |
| 6 | 400 |
|
34/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov |