Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Common russian riichi rating (CRR)
Rating date Feb. 19, 2023 (latest changes Feb. 19, 2023).
68 place (342.32).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (733.33 * 3.45 * 0.71 + 189.19 * 4.05 * 1 + 493.33 * 4.20 * 1 + 0 + 0) / (3.45 * 0.71 + 4.05 * 1 + 4.20 * 1 + 1 + 1) = 365.3671230150849
p2 = (493.33 * 4.20 * 1 + 733.33 * 3.45 * 0.71 + 189.19 * 4.05 * 1) / max_coefficients = 319.27147766323026
score = 365.3671230150849 * 0.5 + 319.27147766323026 * 0.5 = 342.3193003391576
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-01-28 | 65 -> 68 | 359.76 -> 342.32 |
Saint Petersburg Open 2021: 86% -> 71% |
| 2023-01-14 | 64 -> 65 | 359.76 | |
| 2023-01-03 | 65 -> 64 | 359.76 | |
| 2022-12-19 | 65 | 358.12 -> 359.76 | |
| 2022-12-18 | 63 -> 65 | 358.12 | |
| 2022-11-28 | 61 -> 63 | 372.51 -> 358.12 |
Saint Petersburg Open 2021: 100% -> 86% |
| 2022-11-06 | 72 -> 61 | 272.22 -> 372.51 |
IX Russian Riichi Championship: 0% -> 100% |
| 2022-11-03 | 73 -> 72 | 272.22 | |
| 2022-09-18 | 73 | 272.22 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 493 |
|
39/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 2 | 189 |
|
91/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 3 | 733 |
|
21/76 | 71% | 3.45 | RR | Saint Petersburg Open 2021 |