Bretslavskaya Natalya
From Tyumen, Russia
Internal rating (RR)
Rating date Oct. 13, 2024 (latest changes Oct. 13, 2024).
20 place (667.55).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (724.14 * 3.75 * 0.57 + 887.85 * 4.60 * 1 + 617.02 * 2.80 * 1 + 721.52 * 3.65 * 1 + 0) / (3.75 * 0.57 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 1) = 704.3708935900372
p2 = (887.85 * 4.60 * 1 + 721.52 * 3.65 * 1 + 617.02 * 2.80 * 1 + 724.14 * 3.75 * 0.57) / max_coefficients = 630.7230283911672
score = 704.3708935900372 * 0.5 + 630.7230283911672 * 0.5 = 667.5469609906022
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-13 | 15 -> 20 | 674.08 -> 667.55 | |
| 2024-10-11 | 16 -> 15 | 686.93 -> 674.08 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-07 | 16 | 686.93 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 722 |
|
23/80 | 100% | 3.65 | RR | Riichi over Volga | Samara | |
| 2 | 617 |
|
19/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 3 | 888 |
|
13/108 | 100% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 724 |
|
25/88 | 57% | 3.75 | RR | Money can not buy tenpai | Perm |