Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Common russian riichi rating (CRR)
Rating date Sept. 5, 2023 (latest changes Sept. 5, 2023).
122 place (269.93).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (733.33 * 3.45 * 0.29 + 189.19 * 4.05 * 0.71 + 493.33 * 4.20 * 1 + 102.80 * 4 * 1 + 0) / (3.45 * 0.29 + 4.05 * 0.71 + 4.20 * 1 + 4 * 1 + 1) = 286.98375511714573
p2 = (493.33 * 4.20 * 1 + 733.33 * 3.45 * 0.29 + 189.19 * 4.05 * 0.71 + 102.80 * 4 * 1) / max_coefficients = 252.87081412242813
score = 286.98375511714573 * 0.5 + 252.87081412242813 * 0.5 = 269.9272846197869
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-03 | 98 -> 122 | 288.29 -> 269.93 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-09-01 | 98 | 288.29 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 103 |
|
97/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 2 | 493 |
|
39/76 | 100% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 3 | 189 |
|
91/112 | 71% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 4 | 733 |
|
21/76 | 29% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |