Sorokina Darina
From Simferopol, Russia
EMA: 15990219
Common russian riichi rating (CRR)
Rating date Aug. 20, 2025 (latest changes Aug. 9, 2025).
176 place (285.93).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (0 * 1.80 * 1 + 909.09 * 0.90 * 1 + 400 * 2 * 1 + 913.04 * 1.20 * 1 + 0) / (1.80 * 1 + 0.90 * 1 + 2 * 1 + 1.20 * 1 + 1) = 393.30869565217387
p2 = (913.04 * 1.20 * 1 + 909.09 * 0.90 * 1 + 400 * 2 * 1 + 0 * 1.80 * 1) / max_coefficients = 178.54144736842105
score = 393.30869565217387 * 0.5 + 178.54144736842105 * 0.5 = 285.92507151029747
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 176 | 285.05 -> 285.93 | |
| 2025-08-03 | 170 -> 176 | 285.05 | |
| 2025-07-26 | 230 -> 170 | 173.47 -> 285.05 |
Pands in discards: 0% -> 100% |
| 2025-07-13 | 226 -> 230 | 173.47 | |
| 2025-07-12 | 227 -> 226 | 172.48 -> 173.47 | |
| 2025-07-03 | 229 -> 227 | 172.48 | |
| 2025-06-27 | 230 -> 229 | 172.48 | |
| 2025-06-15 | 221 -> 230 | 174.02 -> 172.48 | |
| 2025-06-14 | 214 -> 221 | 174.02 | |
| 2025-06-11 | 221 -> 214 | 174.02 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 913 |
|
🥉 | 3/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol |
| 2 | 400 |
|
10/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 3 | 909 |
|
🥈 | 2/12 | 100% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |
| 4 | 0 |
|
16/16 | 100% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol | |
| 5 | 522 |
|
12/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol |