Kosolapov Stanislav
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 3, 2025 (latest changes Sept. 3, 2025).
219 place (196.68).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (657.14 * 1.90 * 1 + 246.75 * 3.45 * 1 + 0 + 0 + 0) / (1.90 * 1 + 3.45 * 1 + 1 + 1 + 1) = 251.4814371257485
p2 = (657.14 * 1.90 * 1 + 246.75 * 3.45 * 1) / max_coefficients = 141.8831081081081
score = 251.4814371257485 * 0.5 + 141.8831081081081 * 0.5 = 196.6822726169283
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 224 -> 219 | 196.68 | |
| 2025-09-01 | 224 | 194.82 -> 196.68 | |
| 2025-08-31 | 224 | 194.82 |
SPB Riichi Open 2025: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 247 |
|
59/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 657 |
|
13/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg |