Grigoryan Andrey
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Feb. 16, 2025 (latest changes Feb. 16, 2025).
182 place (73.95).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (136.84 * 3.85 * 1 + 118.64 * 3.25 * 1 + 0 + 0 + 0) / (3.85 * 1 + 3.25 * 1 + 1 + 1 + 1) = 90.33960396039605
p2 = (136.84 * 3.85 * 1 + 118.64 * 3.25 * 1) / max_coefficients = 57.56656151419559
score = 90.33960396039605 * 0.5 + 57.56656151419559 * 0.5 = 73.95308273729582
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-16 | 182 | 73.95 |
White Wolf Cup: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 119 |
|
53/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 137 |
|
83/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 3 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |