Filatova Marina
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Aug. 11, 2026 (latest changes Aug. 8, 2026).
26 place (681.63).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (631.58 * 1.50 * 0.71 + 925.93 * 2.45 * 1 + 902.10 * 4.71 * 1 + 777.78 * 2.45 * 1 + 0) / (1.50 * 0.71 + 2.45 * 1 + 4.71 * 1 + 2.45 * 1 + 1) = 778.9846294766488
p2 = (902.10 * 4.71 * 1 + 925.93 * 2.45 * 1 + 777.78 * 2.45 * 1 + 631.58 * 1.50 * 0.71) / max_coefficients = 584.2818626553941
score = 778.9846294766488 * 0.5 + 584.2818626553941 * 0.5 = 681.6332460660215
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-04 | 27 -> 26 | 681.63 | |
| 2026-08-02 | 60 -> 27 | 582.53 -> 681.63 |
Ivanovo Babayka 2026: 0% -> 100% |
| 2026-07-25 | 57 -> 60 | 582.53 | |
| 2026-07-17 | 57 | 586.14 -> 582.53 |
HaTiKo: 86% -> 71% |
| 2026-07-14 | 58 -> 57 | 586.14 | |
| 2026-07-12 | 54 -> 58 | 586.14 | |
| 2026-07-11 | 55 -> 54 | 586.14 | |
| 2026-07-02 | 56 -> 55 | 586.14 | |
| 2026-06-15 | 58 -> 56 | 577.61 -> 586.14 | |
| 2026-06-14 | 160 -> 58 | 332.39 -> 577.61 |
XII Russian Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 778 |
|
7/28 | 100% | 2.45 | RR | Ivanovo Babayka 2026 | Ivanovo | |
| 2 | 902 |
|
15/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 3 | 926 |
|
🥉 | 3/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov |
| 4 | 632 |
|
8/20 | 71% | 1.50 | CRR | HaTiKo | Korolyov | |
| 5 | 355 |
|
21/32 | 0% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov |