Vasilev Igor
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
251 place (145.01).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (43.48 * 2.10 * 0.29 + 600 * 1.90 * 1 + 0 + 0 + 0) / (2.10 * 0.29 + 1.90 * 1 + 1 + 1 + 1) = 212.01752009556418
p2 = (600 * 1.90 * 1 + 43.48 * 2.10 * 0.29) / max_coefficients = 77.99933110367893
score = 212.01752009556418 * 0.5 + 77.99933110367893 * 0.5 = 145.00842559962155
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-09 | 252 -> 251 | 145.01 | |
| 2025-12-07 | 251 -> 252 | 145.01 | |
| 2025-12-06 | 248 -> 251 | 145.01 | |
| 2025-11-30 | 250 -> 248 | 141.08 -> 145.01 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-25 | 251 -> 250 | 141.08 | |
| 2025-11-04 | 246 -> 251 | 142.88 -> 141.08 | |
| 2025-11-01 | 246 | 142.73 -> 142.88 | |
| 2025-10-27 | 247 -> 246 | 142.73 | |
| 2025-10-22 | 248 -> 247 | 142.73 | |
| 2025-10-13 | 248 | 141.48 -> 142.73 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 600 |
|
15/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 2 | 43 |
|
45/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |