Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Internal rating (RR)
Rating date Dec. 21, 2025 (latest changes Dec. 13, 2025).
44 place (573.21).
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 * 0.43 + 955.06 * 3.75 * 0.71 + 196.08 * 3.05 * 1 + 883.72 * 3 * 1) / (3.05 * 0.29 + 4.60 * 0.43 + 3.05 * 0.43 + 3.75 * 0.71 + 3.05 * 1 + 3 * 1) = 662.5190235115074
p2 = (883.72 * 3 * 1 + 955.06 * 3.75 * 0.71 + 921.57 * 3.05 * 0.43 + 941.18 * 3.05 * 0.29) / max_coefficients = 483.89498327759196
score = 662.5190235115074 * 0.5 + 483.89498327759196 * 0.5 = 573.2070033945497
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-13 | 40 -> 44 | 596.15 -> 573.21 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 37 -> 40 | 613.46 -> 596.15 |
Agari Summer Tournament 2024: 57% -> 43% |
| 2025-12-04 | 38 -> 37 | 613.46 | |
| 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% |