Federov Aleksey
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
270 place (71.13).
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 * 0.43 + 193.55 * 1.80 * 0.57 + 0 + 0 + 0) / (3.05 * 0.43 + 1.80 * 0.57 + 1 + 1 + 1) = 104.56262006278406
p2 = (274.51 * 3.05 * 0.43 + 193.55 * 1.80 * 0.57) / max_coefficients = 37.697297297297304
score = 104.56262006278406 * 0.5 + 37.697297297297304 * 0.5 = 71.12995868004069
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-26 | 271 -> 270 | 71.13 | |
| 2025-09-19 | 270 -> 271 | 74.86 -> 71.13 |
"Green Dragon" in the Secret Chamber: 71% -> 57% |
| 2025-09-10 | 267 -> 270 | 84.89 -> 74.86 |
Agari Spring Tournament 2024: 57% -> 43% |
| 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 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 194 |
|
26/32 | 57% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 2 | 275 |
|
38/52 | 43% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |