Sorokina Darina
From Simferopol, Russia
EMA: 15990219
Common russian riichi rating (CRR)
Rating date July 12, 2025 (latest changes July 12, 2025).
226 place (173.47).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (0 * 1.80 * 1 + 909.09 * 0.90 * 1 + 400 * 2 * 1 + 0 + 0) / (1.80 * 1 + 0.90 * 1 + 2 * 1 + 1 + 1) = 241.5194029850746
p2 = (909.09 * 0.90 * 1 + 400 * 2 * 1 + 0 * 1.80 * 1) / max_coefficients = 105.41889250814332
score = 241.5194029850746 * 0.5 + 105.41889250814332 * 0.5 = 173.46914774660897
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-05-19 | 222 -> 221 | 174.02 | |
| 2025-05-17 | 219 -> 222 | 174.02 | |
| 2025-05-12 | 218 -> 219 | 171.81 -> 174.02 | |
| 2025-05-03 | 215 -> 218 | 171.81 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 400 |
|
10/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol |
| 2 | 909 |
|
2/12 | 100% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |
| 3 | 0 |
|
16/16 | 100% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |
| 4 | 522 |
|
12/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol |