Revin Ivan
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Sept. 1, 2025 (latest changes Sept. 1, 2025).
295 place (29.23).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (66.67 * 1.60 * 0.71 + 83.33 * 2.20 * 1 + 0 + 0 + 0) / (1.60 * 0.71 + 2.20 * 1 + 1 + 1 + 1) = 40.91516787326892
p2 = (83.33 * 2.20 * 1 + 66.67 * 1.60 * 0.71) / max_coefficients = 17.535135135135132
score = 40.91516787326892 * 0.5 + 17.535135135135132 * 0.5 = 29.225151504202024
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-01 | 296 -> 295 | 28.99 -> 29.23 | |
| 2025-08-31 | 289 -> 296 | 28.99 | |
| 2025-08-26 | 291 -> 289 | 28.99 | |
| 2025-08-25 | 292 -> 291 | 28.99 | |
| 2025-08-22 | 293 -> 292 | 28.99 | |
| 2025-08-04 | 293 | 28.91 -> 28.99 | |
| 2025-08-03 | 288 -> 293 | 28.91 | |
| 2025-08-02 | 287 -> 288 | 28.91 | |
| 2025-07-26 | 282 -> 287 | 28.91 | |
| 2025-07-13 | 279 -> 282 | 28.91 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 83 |
|
23/25 | 100% | 2.20 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 2 | 67 |
|
15/16 | 71% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk |