Sorokina Darina
From Simferopol, Russia
EMA: 15990219
Common russian riichi rating (CRR)
Rating date Jan. 8, 2026 (latest changes Jan. 7, 2026).
137 place (353.86).
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 * 0.71 + 909.09 * 0.90 * 1 + 400 * 2 * 1 + 913.04 * 1.20 * 1 + 434.78 * 1.20 * 1) / (1.80 * 0.71 + 0.90 * 1 + 2 * 1 + 1.20 * 1 + 1.20 * 1) = 491.2993832128204
p2 = (913.04 * 1.20 * 1 + 909.09 * 0.90 * 1 + 400 * 2 * 1 + 434.78 * 1.20 * 1) / max_coefficients = 216.42608695652174
score = 491.2993832128204 * 0.5 + 216.42608695652174 * 0.5 = 353.86273508467104
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-03 | 135 -> 137 | 353.86 | |
| 2026-01-01 | 137 -> 135 | 353.86 | |
| 2025-12-27 | 140 -> 137 | 344.64 -> 353.86 |
Happy Bamboo 2024: 86% -> 71% |
| 2025-12-07 | 134 -> 140 | 344.64 | |
| 2025-12-06 | 161 -> 134 | 295.03 -> 344.64 |
Riichi on fire: 0% -> 100% |
| 2025-12-04 | 162 -> 161 | 295.03 | |
| 2025-11-25 | 163 -> 162 | 295.03 | |
| 2025-11-22 | 160 -> 163 | 295.03 | |
| 2025-11-10 | 161 -> 160 | 295.03 | |
| 2025-11-04 | 159 -> 161 | 299.16 -> 295.03 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 435 |
|
14/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol | |
| 2 | 913 |
|
🥉 | 3/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol |
| 3 | 400 |
|
10/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 4 | 909 |
|
🥈 | 2/12 | 100% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |
| 5 | 0 |
|
16/16 | 71% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol | |
| 6 | 522 |
|
12/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol |