Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date April 26, 2025 (latest changes April 26, 2025).
244 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 |
---|---|---|---|
2025-04-22 | 246 -> 244 | 78.58 -> 73.95 |
Fire cup 2023: 14% -> 0% |
2025-04-13 | 243 -> 246 | 78.58 | |
2025-03-29 | 237 -> 243 | 78.58 | |
2025-03-23 | 225 -> 237 | 78.58 | |
2025-03-02 | 224 -> 225 | 78.58 | |
2025-02-27 | 225 -> 224 | 78.58 | |
2025-02-25 | 224 -> 225 | 95.57 -> 78.58 |
Earth cup: 14% -> 0% |
2025-02-22 | 224 | 94.92 -> 95.57 |
Fire cup 2023: 29% -> 14% |
2025-02-16 | 223 -> 224 | 74.27 -> 94.92 |
White Wolf Cup: 0% -> 100% |
2025-02-02 | 217 -> 223 | 74.27 |
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 | 43 |
|
23/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg |
4 | 548 |
|
15/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg |
5 | 538 |
|
19/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg |
6 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |