Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Internal rating (RR)
Rating date Dec. 1, 2025 (latest changes Nov. 30, 2025).
38 place (613.46).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (941.18 * 3.05 * 0.29 + 355.14 * 4.60 * 0.43 + 921.57 * 3.05 * 0.57 + 955.06 * 3.75 * 0.86 + 196.08 * 3.05 * 1 + 883.72 * 3 * 1) / (3.05 * 0.29 + 4.60 * 0.43 + 3.05 * 0.57 + 3.75 * 0.86 + 3.05 * 1 + 3 * 1) = 681.9761094713007
p2 = (955.06 * 3.75 * 0.86 + 883.72 * 3 * 1 + 921.57 * 3.05 * 0.57 + 941.18 * 3.05 * 0.29) / max_coefficients = 544.9525083612041
score = 681.9761094713007 * 0.5 + 544.9525083612041 * 0.5 = 613.4643089162523
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-30 | 37 -> 38 | 613.46 | |
| 2025-11-12 | 38 -> 37 | 609.85 -> 613.46 |
X Russian Championship: 57% -> 43% |
| 2025-11-10 | 36 -> 38 | 623.78 -> 609.85 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 31 -> 36 | 636.79 -> 623.78 | |
| 2025-11-01 | 33 -> 31 | 635.75 -> 636.79 | |
| 2025-10-13 | 29 -> 33 | 648.82 -> 635.75 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-09 | 25 -> 29 | 665.63 -> 648.82 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-10-04 | 26 -> 25 | 665.63 | |
| 2025-09-14 | 27 -> 26 | 665.63 | |
| 2025-09-12 | 31 -> 27 | 658.96 -> 665.63 |
X Russian Championship: 71% -> 57% |