Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Dec. 22, 2024 (latest changes Dec. 22, 2024).
204 place (87.14).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (548.39 * 1.80 * 0.29 + 43.48 * 1.40 * 0.29 + 136.84 * 3.85 * 1 + 0 + 0) / (1.80 * 0.29 + 1.40 * 0.29 + 3.85 * 1 + 1 + 1) = 122.14823838302603
p2 = (136.84 * 3.85 * 1 + 548.39 * 1.80 * 0.29 + 43.48 * 1.40 * 0.29) / max_coefficients = 52.12870662460568
score = 122.14823838302603 * 0.5 + 52.12870662460568 * 0.5 = 87.13847250381585
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-12-22 | 204 | 86.28 -> 87.14 |
Fire cup 2023: 43% -> 29% |
2024-11-05 | 209 -> 204 | 86.28 | |
2024-11-04 | 204 -> 209 | 86.28 | |
2024-11-03 | 205 -> 204 | 86.28 | |
2024-11-01 | 207 -> 205 | 86.28 | |
2024-10-27 | 206 -> 207 | 86.28 | |
2024-10-25 | 202 -> 206 | 98.36 -> 86.28 |
Earth cup: 43% -> 29% |
2024-10-22 | 202 | 97.40 -> 98.36 |
Fire cup 2023: 57% -> 43% |
2024-10-13 | 188 -> 202 | 98.05 -> 97.40 | |
2024-09-15 | 184 -> 188 | 98.05 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 137 |
|
83/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
2 | 43 |
|
23/24 | 29% | 1.40 | CRR | Fire cup 2023 |
3 | 548 |
|
15/32 | 29% | 1.80 | CRR | Earth cup |
4 | 538 |
|
19/40 | 0% | 1.80 | CRR | Sun tournament |
5 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |