Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date April 17, 2023 (latest changes April 17, 2023).
93 place (270.94).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 2.80 * 1) = 14.04985
p1 = (360 * 3.45 * 0.57 + 548.39 * 1.80 * 1 + 538.46 * 1.80 * 1 + 0 + 0) / (3.45 * 0.57 + 1.80 * 1 + 1.80 * 1 + 1 + 1) = 352.11911249410605
p2 = (548.39 * 1.80 * 1 + 538.46 * 1.80 * 1 + 360 * 3.45 * 0.57) / max_coefficients = 189.7536272629245
score = 352.11911249410605 * 0.5 + 189.7536272629245 * 0.5 = 270.9363698785153
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-03-31 | 93 | 270.94 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 548 |
|
15/32 | 100% | 1.80 | CRR | Earth cup |
| 2 | 538 |
|
19/40 | 100% | 1.80 | CRR | Sun tournament |
| 3 | 360 |
|
49/76 | 57% | 3.45 | RR | Saint Petersburg Open 2021 |