Bretslavskaya Natalya
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date May 19, 2024 (latest changes May 14, 2024).
25 place (615.77).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999
p1 = (740.74 * 2.30 * 1 + 222.22 * 2.30 * 1 + 724.14 * 3.75 * 1 + 887.85 * 4.60 * 1 + 0) / (2.30 * 1 + 2.30 * 1 + 3.75 * 1 + 4.60 * 1 + 1) = 646.1964157706094
p2 = (887.85 * 4.60 * 1 + 724.14 * 3.75 * 1 + 740.74 * 2.30 * 1 + 222.22 * 2.30 * 1) / max_coefficients = 585.3532467532468
score = 646.1964157706094 * 0.5 + 585.3532467532468 * 0.5 = 615.7748312619281
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-12 | 66 -> 25 | 418.12 -> 615.77 |
X Russian Championship: 0% -> 100% |
| 2024-05-06 | 67 -> 66 | 418.12 | |
| 2024-05-05 | 66 -> 67 | 418.12 | |
| 2024-04-12 | 65 -> 66 | 418.12 | |
| 2024-03-30 | 62 -> 65 | 418.12 | |
| 2024-03-20 | 64 -> 62 | 418.12 | |
| 2024-03-10 | 56 -> 64 | 427.08 -> 418.12 | |
| 2024-03-06 | 59 -> 56 | 418.78 -> 427.08 | |
| 2024-02-25 | 64 -> 59 | 406.03 -> 418.78 |
Chasing Kan: 0% -> 100% |
| 2024-02-12 | 67 -> 64 | 406.03 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 888 |
|
13/108 | 100% | 4.60 | RR | X Russian Championship |
| 2 | 222 |
|
22/28 | 100% | 2.30 | CRR | Chasing Kan |
| 3 | 741 |
|
8/28 | 100% | 2.30 | CRR | Finding Dora |
| 4 | 724 |
|
25/88 | 100% | 3.75 | RR | Money can not buy tenpai |