Grishchenko Aleksandra
From Korolyov, Russia
Internal rating (RR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
24 place (683.11).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (549.02 * 3.05 * 0.29 + 326.09 * 2.10 * 0.29 + 822.43 * 4.60 * 0.43 + 547.37 * 3.85 * 0.71 + 797.75 * 3.75 * 0.86 + 470.59 * 3.05 * 1 + 796.61 * 3.25 * 1 + 400 * 2 * 1 + 600 * 2.45 * 1 + 1000 * 3 * 1 + 596.49 * 3.90 * 1 + 774.19 * 3 * 1 + 526.32 * 2.25 * 1) / (3.05 * 0.29 + 2.10 * 0.29 + 4.60 * 0.43 + 3.85 * 0.71 + 3.75 * 0.86 + 3.05 * 1 + 3.25 * 1 + 2 * 1 + 2.45 * 1 + 3 * 1 + 3.90 * 1 + 3 * 1 + 2.25 * 1) = 665.2492277625084
p2 = (1000 * 3 * 1 + 796.61 * 3.25 * 1 + 797.75 * 3.75 * 0.86 + 596.49 * 3.90 * 1) / max_coefficients = 700.961872909699
score = 665.2492277625084 * 0.5 + 700.961872909699 * 0.5 = 683.1055503361038
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-07 | 25 -> 24 | 672.84 -> 683.11 |
Winter Hatiko: 0% -> 100% |
| 2025-11-30 | 25 | 665.14 -> 672.84 |
Seihoku spring tournament 2024: 43% -> 29% Final Cup 2025: 0% -> 100% |
| 2025-11-12 | 25 | 667.12 -> 665.14 |
X Russian Championship: 57% -> 43% |
| 2025-11-10 | 24 -> 25 | 666.55 -> 667.12 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 20 -> 24 | 679.16 -> 666.55 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 22 -> 20 | 677.06 -> 679.16 |
SPB Riichi Open 2024: 86% -> 71% |
| 2025-10-13 | 20 -> 22 | 682.03 -> 677.06 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-04 | 22 -> 20 | 682.03 | |
| 2025-09-30 | 23 -> 22 | 680.48 -> 682.03 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-12 | 21 -> 23 | 700.74 -> 680.48 |
X Russian Championship: 71% -> 57% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 526 |
|
10/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov | |
| 2 | 774 |
|
8/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 3 | 596 |
|
24/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 4 | 1000 |
|
🥇 | 1/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov |
| 5 | 600 |
|
13/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 6 | 418 |
|
40/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 7 | 400 |
|
10/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 8 | 797 |
|
13/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 9 | 471 |
|
28/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 10 | 214 |
|
34/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 11 | 798 |
|
19/90 | 86% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 12 | 547 |
|
44/96 | 71% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 13 | 822 |
|
20/108 | 43% | 4.60 | RR | X Russian Championship | Perm | |
| 14 | 326 |
|
32/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 15 | 549 |
|
24/52 | 29% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |