Vasiliev Sergey
From Moscow, Russia
EMA: 15990103
Internal rating (RR)
Rating date Feb. 6, 2026 (latest changes Feb. 4, 2026).
10 place (728.41).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (588.24 * 3.05 * 0.14 + 673.91 * 2.10 * 0.14 + 588.79 * 4.60 * 0.29 + 392.16 * 3.05 * 0.43 + 800 * 3.85 * 0.57 + 967.74 * 3.10 * 0.86 + 686.27 * 3.05 * 0.86 + 661.02 * 3.25 * 1 + 600 * 2 * 1 + 974.03 * 3.45 * 1 + 806.45 * 3 * 1) / (3.05 * 0.14 + 2.10 * 0.14 + 4.60 * 0.29 + 3.05 * 0.43 + 3.85 * 0.57 + 3.10 * 0.86 + 3.05 * 0.86 + 3.25 * 1 + 2 * 1 + 3.45 * 1 + 3 * 1) = 754.527610433745
p2 = (974.03 * 3.45 * 1 + 967.74 * 3.10 * 0.86 + 806.45 * 3 * 1 + 661.02 * 3.25 * 1) / max_coefficients = 702.2976588628763
score = 754.527610433745 * 0.5 + 702.2976588628763 * 0.5 = 728.4126346483107
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-02-02 | 10 | 727.76 -> 728.41 |
Agari Winter Tournament 2025: 100% -> 86% |
| 2026-01-30 | 10 | 727.25 -> 727.76 |
Seihoku spring tournament 2024: 29% -> 14% |
| 2026-01-25 | 9 -> 10 | 727.25 | |
| 2026-01-12 | 10 -> 9 | 725.01 -> 727.25 |
X Russian Championship: 43% -> 29% |
| 2026-01-10 | 10 | 723.58 -> 725.01 |
Agari Spring Tournament 2024: 29% -> 14% |
| 2026-01-07 | 8 -> 10 | 749.83 -> 723.58 |
Moscow Open Riichi Marathon 2026: 0% -> 100% Moscow Open Riichi Marathon: 100% -> 86% |
| 2026-01-01 | 7 -> 8 | 751.92 -> 749.83 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 8 -> 7 | 751.92 | |
| 2025-11-30 | 10 -> 8 | 739.58 -> 751.92 |
Seihoku spring tournament 2024: 43% -> 29% Final Cup 2025: 0% -> 100% |
| 2025-11-12 | 12 -> 10 | 736.98 -> 739.58 |
X Russian Championship: 57% -> 43% |