Bretslavskaya Natalya
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date Jan. 31, 2026 (latest changes Jan. 30, 2026).
117 place (406.99).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (222.22 * 2.30 * 0.14 + 887.85 * 4.60 * 0.29 + 617.02 * 2.80 * 0.43 + 721.52 * 3.65 * 0.57 + 225.81 * 2.40 * 1) / (2.30 * 0.14 + 4.60 * 0.29 + 2.80 * 0.43 + 3.65 * 0.57 + 2.40 * 1) = 549.504815393978
p2 = (721.52 * 3.65 * 0.57 + 887.85 * 4.60 * 0.29 + 617.02 * 2.80 * 0.43 + 225.81 * 2.40 * 1) / max_coefficients = 264.4849498327759
score = 549.504815393978 * 0.5 + 264.4849498327759 * 0.5 = 406.99488261337694
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-25 | 114 -> 117 | 406.99 | |
| 2026-01-15 | 115 -> 114 | 406.99 | |
| 2026-01-14 | 109 -> 115 | 416.99 -> 406.99 |
Guardian of the Winds: 57% -> 43% |
| 2026-01-12 | 91 -> 109 | 449.64 -> 416.99 |
X Russian Championship: 43% -> 29% |
| 2026-01-07 | 89 -> 91 | 449.64 | |
| 2026-01-01 | 90 -> 89 | 449.64 | |
| 2025-12-27 | 89 -> 90 | 449.64 | |
| 2025-12-25 | 95 -> 89 | 442.91 -> 449.64 |
Chasing Kan: 29% -> 14% |
| 2025-12-07 | 93 -> 95 | 442.91 | |
| 2025-12-06 | 91 -> 93 | 442.91 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 226 |
|
25/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 2 | 722 |
|
23/80 | 57% | 3.65 | RR | Riichi over Volga | Samara | |
| 3 | 617 |
|
19/48 | 43% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 4 | 888 |
|
13/108 | 29% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 222 |
|
22/28 | 14% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
| 6 | 741 |
|
8/28 | 0% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
| 7 | 724 |
|
25/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |