Grishchenko Aleksandra
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Dec. 27, 2024 (latest changes Dec. 26, 2024).
22 place (647.94).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (822.43 * 4.60 * 1 + 326.09 * 2.10 * 1 + 322.58 * 1.80 * 1 + 789.47 * 1.50 * 1 + 549.02 * 3.05 * 1 + 547.37 * 3.85 * 1 + 797.75 * 3.75 * 1) / (4.60 * 1 + 2.10 * 1 + 1.80 * 1 + 1.50 * 1 + 3.05 * 1 + 3.85 * 1 + 3.75 * 1) = 629.8435835351089
p2 = (822.43 * 4.60 * 1 + 797.75 * 3.75 * 1 + 547.37 * 3.85 * 1 + 549.02 * 3.05 * 1) / max_coefficients = 666.0334384858044
score = 629.8435835351089 * 0.5 + 666.0334384858044 * 0.5 = 647.9385110104566
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-12-11 | 23 -> 22 | 647.94 | |
| 2024-11-05 | 24 -> 23 | 647.94 | |
| 2024-10-13 | 41 -> 24 | 578.01 -> 647.94 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-09-03 | 45 -> 41 | 568.01 -> 578.01 | |
| 2024-09-01 | 48 -> 45 | 542.40 -> 568.01 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-27 | 49 -> 48 | 542.40 | |
| 2024-08-26 | 50 -> 49 | 542.40 | |
| 2024-08-11 | 51 -> 50 | 539.86 -> 542.40 | |
| 2024-08-04 | 45 -> 51 | 549.42 -> 539.86 | |
| 2024-07-14 | 41 -> 45 | 549.42 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 798 |
|
19/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 2 | 547 |
|
44/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 3 | 789 |
|
5/20 | 100% | 1.50 | CRR | Duplicate riichi mahjong tournament 2024 |
| 4 | 323 |
|
22/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
| 5 | 822 |
|
20/108 | 100% | 4.60 | RR | X Russian Championship |
| 6 | 326 |
|
32/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 7 | 549 |
|
24/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |