Sorokina Darina
From Simferopol, Russia
EMA: 15990219
Common russian riichi rating (CRR)
Rating date April 20, 2026 (latest changes April 19, 2026).
133 place (378.27).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (0 * 1.80 * 0.57 + 909.09 * 0.90 * 0.86 + 400 * 2 * 1 + 913.04 * 1.20 * 1 + 434.78 * 1.20 * 1 + 526.32 * 2.10 * 1) / (1.80 * 0.57 + 0.90 * 0.86 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 2.10 * 1) = 508.91033758197375
p2 = (526.32 * 2.10 * 1 + 913.04 * 1.20 * 1 + 400 * 2 * 1 + 909.09 * 0.90 * 0.86) / max_coefficients = 247.63678929765888
score = 508.91033758197375 * 0.5 + 247.63678929765888 * 0.5 = 378.2735634398163
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-19 | 145 -> 133 | 355.81 -> 378.27 |
The Southern Dragon Cup 2026: 0% -> 100% |
| 2026-04-13 | 146 -> 145 | 355.81 | |
| 2026-04-11 | 145 -> 146 | 355.81 | |
| 2026-04-09 | 144 -> 145 | 355.81 | |
| 2026-04-05 | 142 -> 144 | 355.81 | |
| 2026-04-04 | 143 -> 142 | 355.81 | |
| 2026-03-29 | 140 -> 143 | 363.85 -> 355.81 |
The Southern Coon Mini Cup: 100% -> 86% |
| 2026-03-21 | 138 -> 140 | 363.85 | |
| 2026-03-14 | 132 -> 138 | 363.85 | |
| 2026-03-12 | 135 -> 132 | 363.85 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 526 |
|
10/20 | 100% | 2.10 | RR | The Southern Dragon Cup 2026 | Simferopol | |
| 2 | 435 |
|
14/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol | |
| 3 | 913 |
|
🥉 | 3/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol |
| 4 | 400 |
|
10/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 5 | 909 |
|
🥈 | 2/12 | 86% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |
| 6 | 0 |
|
16/16 | 57% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol | |
| 7 | 522 |
|
12/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol |