Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Common russian riichi rating (CRR)
Rating date Sept. 3, 2023 (latest changes Sept. 3, 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 | 97 -> 122 | 288.29 -> 269.93 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 95 -> 97 | 288.29 | |
| 2023-08-26 | 94 -> 95 | 288.29 | |
| 2023-08-19 | 95 -> 94 | 288.29 | |
| 2023-08-12 | 97 -> 95 | 283.29 -> 288.29 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 90 -> 97 | 305.05 -> 283.29 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-20 | 91 -> 90 | 305.05 | |
| 2023-07-06 | 92 -> 91 | 305.05 | |
| 2023-07-03 | 93 -> 92 | 305.05 | |
| 2023-06-19 | 95 -> 93 | 305.05 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 103 |
|
97/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 493 |
|
39/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 3 | 189 |
|
91/112 | 71% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 733 |
|
21/76 | 29% | 3.45 | RR | Saint Petersburg Open 2021 |