Grishchenko Aleksandra
From Korolyov, Russia
Internal rating (RR)
Rating date July 3, 2025 (latest changes July 3, 2025).
31 place (649.23).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (549.02 * 3.05 * 0.71 + 326.09 * 2.10 * 0.71 + 822.43 * 4.60 * 0.86 + 547.37 * 3.85 * 1 + 797.75 * 3.75 * 1 + 470.59 * 3.05 * 1 + 796.61 * 3.25 * 1 + 400 * 2 * 1 + 417.91 * 4.10 * 1) / (3.05 * 0.71 + 2.10 * 0.71 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.05 * 1 + 3.25 * 1 + 2 * 1 + 4.10 * 1) = 599.6979505494038
p2 = (822.43 * 4.60 * 0.86 + 797.75 * 3.75 * 1 + 796.61 * 3.25 * 1 + 547.37 * 3.85 * 1) / max_coefficients = 698.7609524211356
score = 599.6979505494038 * 0.5 + 698.7609524211356 * 0.5 = 649.2294514852697
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-15 | 26 -> 31 | 654.66 -> 649.23 |
13 bloody tiles: 0% -> 100% |
| 2025-06-11 | 29 -> 26 | 654.66 | |
| 2025-06-08 | 29 | 662.53 -> 654.66 |
Random not fault: 0% -> 100% |
| 2025-05-30 | 29 | 660.82 -> 662.53 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-12 | 27 -> 29 | 665.84 -> 660.82 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 28 -> 27 | 665.34 -> 665.84 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 22 -> 28 | 665.34 | |
| 2025-04-26 | 21 -> 22 | 665.34 | |
| 2025-03-30 | 21 | 663.71 -> 665.34 |
Seihoku spring tournament 2024: 100% -> 86% |
| 2025-03-10 | 22 -> 21 | 663.25 -> 663.71 |
Agari Spring Tournament 2024: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 418 |
|
40/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 2 | 400 |
|
10/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 3 | 797 |
|
13/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 4 | 471 |
|
28/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 5 | 214 |
|
34/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 6 | 798 |
|
19/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 547 |
|
44/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 822 |
|
20/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 9 | 326 |
|
32/47 | 71% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 10 | 549 |
|
24/52 | 71% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |