Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 25, 2024 (latest changes Oct. 25, 2024).
206 place (86.28).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (548.39 * 1.80 * 0.29 + 43.48 * 1.40 * 0.43 + 136.84 * 3.85 * 1 + 0 + 0) / (1.80 * 0.29 + 1.40 * 0.43 + 3.85 * 1 + 1 + 1) = 119.88857458753932
p2 = (136.84 * 3.85 * 1 + 548.39 * 1.80 * 0.29 + 43.48 * 1.40 * 0.43) / max_coefficients = 52.67760252365931
score = 119.88857458753932 * 0.5 + 52.67760252365931 * 0.5 = 86.28308855559932
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-25 | 202 -> 206 | 98.36 -> 86.28 |
Earth cup: 43% -> 29% |
| 2024-10-22 | 202 | 97.40 -> 98.36 |
Fire cup 2023: 57% -> 43% |
| 2024-10-13 | 188 -> 202 | 98.05 -> 97.40 | |
| 2024-09-15 | 184 -> 188 | 98.05 | |
| 2024-09-03 | 186 -> 184 | 96.92 -> 98.05 | |
| 2024-09-01 | 187 -> 186 | 65.04 -> 96.92 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-26 | 182 -> 187 | 97.37 -> 65.04 | |
| 2024-08-25 | 176 -> 182 | 114.33 -> 97.37 |
Earth cup: 57% -> 43% |
| 2024-08-22 | 180 -> 176 | 111.41 -> 114.33 |
Fire cup 2023: 71% -> 57% |
| 2024-08-11 | 180 | 111.15 -> 111.41 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 137 |
|
83/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 43 |
|
23/24 | 43% | 1.40 | CRR | Fire cup 2023 |
| 3 | 548 |
|
15/32 | 29% | 1.80 | CRR | Earth cup |
| 4 | 538 |
|
19/40 | 0% | 1.80 | CRR | Sun tournament |
| 5 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |