Grigoryan Andrey
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date May 12, 2024 (latest changes May 12, 2024).
166 place (136.99).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999
p1 = (538.46 * 1.80 * 0.29 + 548.39 * 1.80 * 0.71 + 43.48 * 1.40 * 0.86 + 0 + 0) / (1.80 * 0.29 + 1.80 * 0.71 + 1.40 * 0.86 + 1 + 1) = 206.83448201378417
p2 = (548.39 * 1.80 * 0.71 + 538.46 * 1.80 * 0.29 + 43.48 * 1.40 * 0.86) / max_coefficients = 67.15324675324676
score = 206.83448201378417 * 0.5 + 67.15324675324676 * 0.5 = 136.99386438351547
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-12 | 155 -> 166 | 141.16 -> 136.99 | |
| 2024-05-05 | 154 -> 155 | 141.16 | |
| 2024-05-03 | 155 -> 154 | 141.16 | |
| 2024-05-01 | 157 -> 155 | 141.16 | |
| 2024-04-27 | 148 -> 157 | 154.33 -> 141.16 |
Sun tournament: 43% -> 29% |
| 2024-04-25 | 144 -> 148 | 167.05 -> 154.33 |
Earth cup: 86% -> 71% |
| 2024-04-22 | 146 -> 144 | 163.96 -> 167.05 |
Fire cup 2023: 100% -> 86% |
| 2024-04-20 | 147 -> 146 | 163.96 | |
| 2024-04-17 | 148 -> 147 | 163.96 | |
| 2024-03-30 | 140 -> 148 | 163.96 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 43 |
|
23/24 | 86% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 2 | 548 |
|
15/32 | 71% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 3 | 538 |
|
19/40 | 29% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 4 | 360 |
|
49/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |