Ledneva Darya
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
215 place (193.59).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (366.67 * 2.45 * 1 + 428.57 * 3.45 * 1 + 19.61 * 3.05 * 1 + 0 + 0) / (2.45 * 1 + 3.45 * 1 + 3.05 * 1 + 1 + 1) = 222.52968036529685
p2 = (428.57 * 3.45 * 1 + 366.67 * 2.45 * 1 + 19.61 * 3.05 * 1) / max_coefficients = 164.6418918918919
score = 222.52968036529685 * 0.5 + 164.6418918918919 * 0.5 = 193.58578612859438
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-09 | 216 -> 215 | 193.59 | |
| 2025-10-04 | 219 -> 216 | 193.59 | |
| 2025-09-30 | 220 -> 219 | 193.59 | |
| 2025-09-03 | 226 -> 220 | 193.59 | |
| 2025-09-01 | 226 | 191.42 -> 193.59 | |
| 2025-08-31 | 270 -> 226 | 87.88 -> 191.42 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-25 | 271 -> 270 | 87.88 | |
| 2025-08-22 | 272 -> 271 | 87.88 | |
| 2025-08-04 | 272 | 87.57 -> 87.88 | |
| 2025-08-03 | 267 -> 272 | 87.57 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 429 |
|
45/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 367 |
|
20/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 3 | 20 |
|
51/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow |