Bretslavskaya Natalya
From Tyumen, Russia
Internal rating (RR)
Rating date July 5, 2026 (latest changes July 3, 2026).
67 place (522.64).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (617.02 * 2.80 * 0.14 + 721.52 * 3.65 * 0.14 + 225.81 * 2.40 * 0.57 + 500 * 3.40 * 1 + 846.15 * 4.71 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 2.40 * 0.57 + 3.40 * 1 + 4.71 * 1) = 636.1827019248655
p2 = (846.15 * 4.71 * 1 + 500 * 3.40 * 1 + 721.52 * 3.65 * 0.14 + 225.81 * 2.40 * 0.57) / max_coefficients = 409.1001026703934
score = 636.1827019248655 * 0.5 + 409.1001026703934 * 0.5 = 522.6414022976294
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-07-03 | 68 -> 67 | 522.64 | |
| 2026-07-02 | 69 -> 68 | 518.58 -> 522.64 |
Riichi Maslenitsa (shrovetide): 71% -> 57% |
| 2026-06-16 | 70 -> 69 | 518.58 | |
| 2026-06-15 | 68 -> 70 | 511.07 -> 518.58 | |
| 2026-06-14 | 148 -> 68 | 283.86 -> 511.07 |
XII Russian Championship: 0% -> 100% |
| 2026-06-09 | 149 -> 148 | 283.86 | |
| 2026-06-04 | 135 -> 149 | 308.12 -> 283.86 |
Riichi over Volga: 29% -> 14% |
| 2026-05-17 | 133 -> 135 | 308.12 | |
| 2026-05-14 | 128 -> 133 | 321.67 -> 308.12 |
Guardian of the Winds: 29% -> 14% |
| 2026-05-12 | 107 -> 128 | 376.03 -> 321.67 |
X Russian Championship: 14% -> 0% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 846 |
|
23/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 2 | 500 |
|
38/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 3 | 226 |
|
25/32 | 57% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 4 | 722 |
|
23/80 | 14% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 617 |
|
19/48 | 14% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 6 | 888 |
|
13/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 7 | 724 |
|
25/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |