Dubrovskaya Inga
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
284 place (30.60).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (21.28 * 2.80 * 0.71 + 130.43 * 2.20 * 0.86 + 0 + 0 + 0) / (2.80 * 0.71 + 2.20 * 0.86 + 1 + 1 + 1) = 41.89867057043188
p2 = (130.43 * 2.20 * 0.86 + 21.28 * 2.80 * 0.71) / max_coefficients = 19.297658862876254
score = 41.89867057043188 * 0.5 + 19.297658862876254 * 0.5 = 30.59816471665407
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 280 -> 284 | 31.04 -> 30.60 | |
| 2025-11-01 | 280 | 31.00 -> 31.04 | |
| 2025-10-22 | 282 -> 280 | 31.00 | |
| 2025-10-13 | 282 | 30.70 -> 31.00 | |
| 2025-09-15 | 281 -> 282 | 34.01 -> 30.70 |
Tails, money, two renchans: 100% -> 86% |
| 2025-09-14 | 281 | 33.66 -> 34.01 |
Guardian of the Winds: 86% -> 71% |
| 2025-09-03 | 292 -> 281 | 33.66 | |
| 2025-09-01 | 292 | 33.36 -> 33.66 | |
| 2025-08-31 | 287 -> 292 | 33.36 | |
| 2025-08-26 | 289 -> 287 | 33.36 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 130 |
|
21/24 | 86% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
| 2 | 21 |
|
47/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |