Bretslavskaya Natalya
From Tyumen, Russia
Internal rating (RR)
Rating date Jan. 29, 2026 (latest changes Jan. 26, 2026).
109 place (379.37).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (887.85 * 4.60 * 0.29 + 617.02 * 2.80 * 0.43 + 721.52 * 3.65 * 0.57 + 225.81 * 2.40 * 1 + 0) / (4.60 * 0.29 + 2.80 * 0.43 + 3.65 * 0.57 + 2.40 * 1 + 1) = 494.2618104453675
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 = 494.2618104453675 * 0.5 + 264.4849498327759 * 0.5 = 379.3733801390717
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-26 | 110 -> 109 | 379.37 | |
| 2026-01-25 | 107 -> 110 | 379.37 | |
| 2026-01-14 | 104 -> 107 | 390.55 -> 379.37 |
Guardian of the Winds: 57% -> 43% |
| 2026-01-12 | 94 -> 104 | 424.14 -> 390.55 |
X Russian Championship: 43% -> 29% |
| 2026-01-10 | 95 -> 94 | 424.14 | |
| 2026-01-07 | 92 -> 95 | 424.14 | |
| 2026-01-01 | 94 -> 92 | 424.14 | |
| 2025-12-09 | 95 -> 94 | 424.14 | |
| 2025-12-07 | 94 -> 95 | 424.14 | |
| 2025-12-04 | 88 -> 94 | 441.98 -> 424.14 |
Riichi over Volga: 71% -> 57% |
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 | 724 |
|
25/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |