Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Aug. 25, 2024 (latest changes Aug. 25, 2024).
184 place (97.37).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.05 * 1) = 15.3
p1 = (538.46 * 1.80 * 0.14 + 548.39 * 1.80 * 0.43 + 43.48 * 1.40 * 0.57 + 0 + 0) / (1.80 * 0.14 + 1.80 * 0.43 + 1.40 * 0.57 + 1 + 1) = 155.7594563110853
p2 = (548.39 * 1.80 * 0.43 + 538.46 * 1.80 * 0.14 + 43.48 * 1.40 * 0.57) / max_coefficients = 38.97712418300653
score = 155.7594563110853 * 0.5 + 38.97712418300653 * 0.5 = 97.36829024704592
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-08-25 | 178 -> 184 | 114.33 -> 97.37 |
Earth cup: 57% -> 43% |
| 2024-08-22 | 182 -> 178 | 111.41 -> 114.33 |
Fire cup 2023: 71% -> 57% |
| 2024-08-11 | 182 | 111.15 -> 111.41 | |
| 2024-08-04 | 179 -> 182 | 112.13 -> 111.15 | |
| 2024-07-14 | 174 -> 179 | 112.13 | |
| 2024-06-27 | 172 -> 174 | 127.09 -> 112.13 |
Sun tournament: 29% -> 14% |
| 2024-06-25 | 169 -> 172 | 141.31 -> 127.09 |
Earth cup: 71% -> 57% |
| 2024-06-22 | 170 -> 169 | 138.20 -> 141.31 |
Fire cup 2023: 86% -> 71% |
| 2024-06-11 | 180 -> 170 | 136.99 -> 138.20 | |
| 2024-06-09 | 172 -> 180 | 136.99 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 43 |
|
23/24 | 57% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 2 | 548 |
|
15/32 | 43% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 3 | 538 |
|
19/40 | 14% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 4 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |