Mamin Vladislav
From Saint Petersburg, Russia
EMA: 15990329
Common russian riichi rating (CRR)
Rating date June 1, 2025 (latest changes May 30, 2025).
243 place (113.98).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (521.74 * 2.10 * 0.71 + 115.79 * 3.85 * 1 + 0 + 0 + 0) / (2.10 * 0.71 + 3.85 * 1 + 1 + 1 + 1) = 147.1144415050006
p2 = (521.74 * 2.10 * 0.71 + 115.79 * 3.85 * 1) / max_coefficients = 80.8554920599816
score = 147.1144415050006 * 0.5 + 80.8554920599816 * 0.5 = 113.9849667824911
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-04-26 | 228 -> 230 | 123.74 | |
| 2025-04-22 | 232 -> 228 | 123.74 | |
| 2025-04-13 | 229 -> 232 | 123.74 | |
| 2025-03-30 | 226 -> 229 | 134.74 -> 123.74 |
Seihoku spring tournament 2024: 100% -> 86% |