Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Nov. 28, 2023 (latest changes Nov. 28, 2023).
143 place (195.23).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (538.46 * 1.80 * 0.71 + 548.39 * 1.80 * 1 + 43.48 * 1.40 * 1 + 0 + 0) / (1.80 * 0.71 + 1.80 * 1 + 1.40 * 1 + 1 + 1) = 268.3255881364347
p2 = (548.39 * 1.80 * 1 + 538.46 * 1.80 * 0.71 + 43.48 * 1.40 * 1) / max_coefficients = 122.1271566939091
score = 268.3255881364347 * 0.5 + 122.1271566939091 * 0.5 = 195.2263724151719
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-11-28 | 136 -> 143 | 227.67 -> 195.23 |
Saint Petersburg Open 2021: 14% -> 0% |
2023-11-26 | 132 -> 136 | 228.15 -> 227.67 | |
2023-11-20 | 134 -> 132 | 228.15 | |
2023-11-06 | 137 -> 134 | 225.39 -> 228.15 | |
2023-11-05 | 131 -> 137 | 225.39 | |
2023-10-27 | 130 -> 131 | 234.57 -> 225.39 |
Sun tournament: 86% -> 71% |
2023-10-22 | 128 -> 130 | 234.57 | |
2023-10-19 | 129 -> 128 | 234.57 | |
2023-10-12 | 131 -> 129 | 234.13 -> 234.57 | |
2023-09-28 | 129 -> 131 | 241.22 -> 234.13 |
Saint Petersburg Open 2021: 29% -> 14% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 43 |
|
23/24 | 100% | 1.40 | CRR | Fire cup 2023 |
2 | 548 |
|
15/32 | 100% | 1.80 | CRR | Earth cup |
3 | 538 |
|
19/40 | 71% | 1.80 | CRR | Sun tournament |
4 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |