Mamin Vladislav
From Saint Petersburg, Russia
EMA: 15990329
Common russian riichi rating (CRR)
Rating date Aug. 9, 2025 (latest changes Aug. 9, 2025).
198 place (241.38).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (521.74 * 2.10 * 0.57 + 115.79 * 3.85 * 1 + 833.33 * 2 * 1 + 0 + 0) / (2.10 * 0.57 + 3.85 * 1 + 2 * 1 + 1 + 1) = 302.6009012214446
p2 = (833.33 * 2 * 1 + 521.74 * 2.10 * 0.57 + 115.79 * 3.85 * 1) / max_coefficients = 180.1657894736842
score = 302.6009012214446 * 0.5 + 180.1657894736842 * 0.5 = 241.3833453475644
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-09 | 199 -> 198 | 241.38 | |
2025-08-04 | 200 -> 199 | 240.50 -> 241.38 | |
2025-08-03 | 194 -> 200 | 240.50 | |
2025-07-30 | 191 -> 194 | 249.12 -> 240.50 |
Seihoku spring tournament 2024: 71% -> 57% |
2025-07-26 | 189 -> 191 | 249.12 | |
2025-07-14 | 190 -> 189 | 249.12 | |
2025-07-13 | 188 -> 190 | 249.12 | |
2025-07-12 | 189 -> 188 | 247.35 -> 249.12 | |
2025-07-03 | 193 -> 189 | 247.35 | |
2025-06-15 | 184 -> 193 | 250.10 -> 247.35 |