Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date June 25, 2024 (latest changes June 25, 2024).
171 place (127.09).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 0.86 + 3.05 * 1) = 14.864125000000001
p1 = (538.46 * 1.80 * 0.29 + 548.39 * 1.80 * 0.57 + 43.48 * 1.40 * 0.71 + 0 + 0) / (1.80 * 0.29 + 1.80 * 0.57 + 1.40 * 0.71 + 1 + 1) = 194.68609668046142
p2 = (548.39 * 1.80 * 0.57 + 538.46 * 1.80 * 0.29 + 43.48 * 1.40 * 0.71) / max_coefficients = 59.50030694709577
score = 194.68609668046142 * 0.5 + 59.50030694709577 * 0.5 = 127.09320181377859
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-06-25 | 167 -> 171 | 141.31 -> 127.09 |
Earth cup: 71% -> 57% |
| 2024-06-22 | 168 -> 167 | 138.20 -> 141.31 |
Fire cup 2023: 86% -> 71% |
| 2024-06-11 | 178 -> 168 | 136.99 -> 138.20 | |
| 2024-06-09 | 170 -> 178 | 136.99 | |
| 2024-05-25 | 166 -> 170 | 136.99 | |
| 2024-05-19 | 164 -> 166 | 136.99 | |
| 2024-05-12 | 154 -> 164 | 141.16 -> 136.99 | |
| 2024-05-05 | 153 -> 154 | 141.16 | |
| 2024-05-03 | 154 -> 153 | 141.16 | |
| 2024-05-01 | 156 -> 154 | 141.16 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 43 |
|
23/24 | 71% | 1.40 | CRR | Fire cup 2023 |
| 2 | 548 |
|
15/32 | 57% | 1.80 | CRR | Earth cup |
| 3 | 538 |
|
19/40 | 29% | 1.80 | CRR | Sun tournament |
| 4 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |