Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Common russian riichi rating (CRR)
Rating date Sept. 13, 2025 (latest changes Sept. 12, 2025).
30 place (665.63).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (941.18 * 3.05 * 0.43 + 355.14 * 4.60 * 0.57 + 921.57 * 3.05 * 0.71 + 955.06 * 3.75 * 1 + 196.08 * 3.05 * 1 + 883.72 * 3 * 1) / (3.05 * 0.43 + 4.60 * 0.57 + 3.05 * 0.71 + 3.75 * 1 + 3.05 * 1 + 3 * 1) = 691.3405157693229
p2 = (955.06 * 3.75 * 1 + 883.72 * 3 * 1 + 921.57 * 3.05 * 0.71 + 941.18 * 3.05 * 0.43) / max_coefficients = 639.9114864864865
score = 691.3405157693229 * 0.5 + 639.9114864864865 * 0.5 = 665.6260011279047
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-12 | 33 -> 30 | 658.96 -> 665.63 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 28 -> 33 | 676.18 -> 658.96 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-03 | 31 -> 28 | 676.18 | |
| 2025-09-01 | 32 -> 31 | 667.39 -> 676.18 | |
| 2025-08-31 | 30 -> 32 | 667.39 | |
| 2025-08-09 | 25 -> 30 | 683.55 -> 667.39 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 27 -> 25 | 680.25 -> 683.55 | |
| 2025-08-03 | 39 -> 27 | 611.85 -> 680.25 |
Two roosters and Chuckles: 0% -> 100% |
| 2025-07-14 | 40 -> 39 | 611.85 | |
| 2025-07-13 | 38 -> 40 | 611.85 |