Vasilev Igor
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Aug. 2, 2025 (latest changes July 30, 2025).
250 place (136.55).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (43.48 * 2.10 * 0.57 + 600 * 1.90 * 1 + 0 + 0 + 0) / (2.10 * 0.57 + 1.90 * 1 + 1 + 1 + 1) = 195.4396272750224
p2 = (600 * 1.90 * 1 + 43.48 * 2.10 * 0.57) / max_coefficients = 77.66579804560261
score = 195.4396272750224 * 0.5 + 77.66579804560261 * 0.5 = 136.5527126603125
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-30 | 252 -> 250 | 133.42 -> 136.55 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-26 | 248 -> 252 | 133.42 | |
| 2025-07-13 | 246 -> 248 | 133.42 | |
| 2025-07-12 | 247 -> 246 | 132.68 -> 133.42 | |
| 2025-07-03 | 248 -> 247 | 132.68 | |
| 2025-06-22 | 249 -> 248 | 132.68 | |
| 2025-06-15 | 240 -> 249 | 133.82 -> 132.68 | |
| 2025-06-14 | 234 -> 240 | 133.82 | |
| 2025-06-11 | 239 -> 234 | 133.82 | |
| 2025-06-08 | 238 -> 239 | 133.82 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 600 |
|
15/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg |
| 2 | 43 |
|
45/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |