Mamin Vladislav
From Saint Petersburg, Russia
EMA: 15990329
Common russian riichi rating (CRR)
Rating date June 15, 2025 (latest changes June 15, 2025).
193 place (247.35).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (521.74 * 2.10 * 0.71 + 115.79 * 3.85 * 1 + 833.33 * 2 * 1 + 0 + 0) / (2.10 * 0.71 + 3.85 * 1 + 2 * 1 + 1 + 1) = 309.63323112332256
p2 = (833.33 * 2 * 1 + 521.74 * 2.10 * 0.71 + 115.79 * 3.85 * 1) / max_coefficients = 185.07593976983455
score = 309.63323112332256 * 0.5 + 185.07593976983455 * 0.5 = 247.35458544657854
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-15 | 184 -> 193 | 250.10 -> 247.35 | |
| 2025-06-14 | 239 -> 184 | 113.98 -> 250.10 |
Tonpu-master: 0% -> 100% |
| 2025-06-11 | 244 -> 239 | 113.98 | |
| 2025-06-08 | 243 -> 244 | 113.98 | |
| 2025-05-30 | 240 -> 243 | 125.63 -> 113.98 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-26 | 241 -> 240 | 125.63 | |
| 2025-05-17 | 238 -> 241 | 125.63 | |
| 2025-05-12 | 238 | 123.74 -> 125.63 | |
| 2025-05-03 | 235 -> 238 | 123.74 | |
| 2025-04-27 | 230 -> 235 | 123.74 |