Vasiliev Sergey
From Moscow, Russia
EMA: 15990103
Internal rating (RR)
Rating date Jan. 26, 2026 (latest changes Jan. 25, 2026).
10 place (727.25).
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 * 0.29 + 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 * 1 + 661.02 * 3.25 * 1 + 600 * 2 * 1 + 974.03 * 3.45 * 1 + 806.45 * 3 * 1) / (3.05 * 0.14 + 2.10 * 0.29 + 4.60 * 0.29 + 3.05 * 0.43 + 3.85 * 0.57 + 3.10 * 0.86 + 3.05 * 1 + 3.25 * 1 + 2 * 1 + 3.45 * 1 + 3 * 1) = 752.2101051123046
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 = 752.2101051123046 * 0.5 + 702.2976588628763 * 0.5 = 727.2538819875905
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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: 100% -> 86% Moscow Open Riichi Marathon 2026: 0% -> 100% |
| 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% |
| 2025-11-10 | 13 -> 12 | 735.34 -> 736.98 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 12 -> 13 | 751.62 -> 735.34 |