Vasiliev Sergey
From Moscow, Russia
EMA: 15990103
Internal rating (RR)
Rating date Sept. 15, 2025 (latest changes Sept. 14, 2025).
10 place (753.85).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (588.24 * 3.05 * 0.43 + 673.91 * 2.10 * 0.57 + 588.79 * 4.60 * 0.57 + 800 * 3.85 * 0.86 + 967.74 * 3.10 * 1 + 686.27 * 3.05 * 1 + 661.02 * 3.25 * 1 + 600 * 2 * 1 + 974.03 * 3.45 * 1) / (3.05 * 0.43 + 2.10 * 0.57 + 4.60 * 0.57 + 3.85 * 0.86 + 3.10 * 1 + 3.05 * 1 + 3.25 * 1 + 2 * 1 + 3.45 * 1) = 754.4163317471493
p2 = (974.03 * 3.45 * 1 + 967.74 * 3.10 * 1 + 800 * 3.85 * 0.86 + 661.02 * 3.25 * 1) / max_coefficients = 753.2817567567565
score = 754.4163317471493 * 0.5 + 753.2817567567565 * 0.5 = 753.8490442519529
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-12 | 11 -> 10 | 751.58 -> 753.85 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 11 | 750.13 -> 751.58 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-01 | 9 -> 11 | 755.28 -> 750.13 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 24 -> 9 | 680.73 -> 755.28 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 26 -> 24 | 678.11 -> 680.73 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 26 | 674.79 -> 678.11 | |
| 2025-08-03 | 24 -> 26 | 674.79 | |
| 2025-07-30 | 24 | 674.77 -> 674.79 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-14 | 25 -> 24 | 674.77 | |
| 2025-07-13 | 26 -> 25 | 674.77 |