Federov Aleksey
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
267 place (84.89).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (274.51 * 3.05 * 0.57 + 193.55 * 1.80 * 0.71 + 0 + 0 + 0) / (3.05 * 0.57 + 1.80 * 0.71 + 1 + 1 + 1) = 120.63677426096996
p2 = (274.51 * 3.05 * 0.57 + 193.55 * 1.80 * 0.71) / max_coefficients = 49.13918918918919
score = 120.63677426096996 * 0.5 + 49.13918918918919 * 0.5 = 84.88798172507957
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 277 -> 267 | 84.89 | |
| 2025-09-01 | 277 | 84.24 -> 84.89 | |
| 2025-08-31 | 271 -> 277 | 84.24 | |
| 2025-08-25 | 272 -> 271 | 84.24 | |
| 2025-08-22 | 273 -> 272 | 84.24 | |
| 2025-08-04 | 273 | 84.01 -> 84.24 | |
| 2025-08-03 | 268 -> 273 | 84.01 | |
| 2025-08-02 | 267 -> 268 | 84.01 | |
| 2025-07-26 | 264 -> 267 | 84.01 | |
| 2025-07-19 | 264 | 87.12 -> 84.01 |
"Green Dragon" in the Secret Chamber: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 194 |
|
26/32 | 71% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 2 | 275 |
|
38/52 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |