Grishchenko Aleksandra
From Korolyov, Russia
Internal rating (RR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
46 place (538.73).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (326.09 * 2.10 * 1 + 822.43 * 4.60 * 1 + 549.02 * 3.05 * 1 + 547.37 * 3.85 * 1 + 0) / (2.10 * 1 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1 + 1) = 565.0575342465754
p2 = (822.43 * 4.60 * 1 + 547.37 * 3.85 * 1 + 549.02 * 3.05 * 1 + 326.09 * 2.10 * 1) / max_coefficients = 512.4124223602486
score = 565.0575342465754 * 0.5 + 512.4124223602486 * 0.5 = 538.7349783034119
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-01 | 58 -> 46 | 462.12 -> 538.73 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 59 -> 58 | 459.99 -> 462.12 | |
| 2024-08-04 | 52 -> 59 | 468.00 -> 459.99 | |
| 2024-07-14 | 49 -> 52 | 468.00 | |
| 2024-06-11 | 51 -> 49 | 460.81 -> 468.00 | |
| 2024-06-09 | 48 -> 51 | 460.81 | |
| 2024-05-12 | 80 -> 48 | 236.19 -> 460.81 |
X Russian Championship: 0% -> 100% |
| 2024-05-06 | 84 -> 80 | 234.11 -> 236.19 | |
| 2024-04-12 | 86 -> 84 | 234.11 | |
| 2024-03-30 | 86 | 234.11 |
Seihoku spring tournament 2024: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 547 |
|
44/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 822 |
|
20/108 | 100% | 4.60 | RR | X Russian Championship |
| 3 | 326 |
|
32/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 4 | 549 |
|
24/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |