Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 14, 2023 (latest changes Jan. 14, 2023).
109 place (200.23).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (360 * 3.45 * 0.86 + 538.46 * 1.80 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 1.80 * 1 + 1 + 1 + 1) = 262.1827137957418
p2 = (360 * 3.45 * 0.86 + 538.46 * 1.80 * 1) / max_coefficients = 138.28453739190093
score = 262.1827137957418 * 0.5 + 138.28453739190093 * 0.5 = 200.23362559382136
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-01-14 | 107 -> 109 | 200.23 | |
2023-01-05 | 108 -> 107 | 200.23 | |
2023-01-03 | 111 -> 108 | 200.23 | |
2022-12-19 | 111 | 199.57 -> 200.23 | |
2022-12-18 | 108 -> 111 | 199.57 | |
2022-11-28 | 108 | 206.75 -> 199.57 |
Saint Petersburg Open 2021: 100% -> 86% |
2022-11-06 | 87 -> 108 | 211.33 -> 206.75 | |
2022-11-03 | 88 -> 87 | 211.33 | |
2022-08-27 | 88 | 211.33 |
Sun tournament: 0% -> 100% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 538 |
|
19/40 | 100% | 1.80 | CRR | Sun tournament |
2 | 360 |
|
49/76 | 86% | 3.45 | RR | Saint Petersburg Open 2021 |