Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Internal rating (RR)
Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).
100 place (251.76).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.57) = 14.26417
p1 = (733.33 * 3.45 * 0.14 + 189.19 * 4.05 * 0.57 + 493.33 * 4.20 * 1 + 102.80 * 4 * 1 + 0) / (3.45 * 0.14 + 4.05 * 0.57 + 4.20 * 1 + 4 * 1 + 1) = 273.38403912660556
p2 = (493.33 * 4.20 * 1 + 189.19 * 4.05 * 0.57 + 102.80 * 4 * 1 + 733.33 * 3.45 * 0.14) / max_coefficients = 230.12695446002118
score = 273.38403912660556 * 0.5 + 230.12695446002118 * 0.5 = 251.75549679331337
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-10-12 | 101 -> 100 | 249.02 -> 251.76 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 98 -> 101 | 269.93 -> 249.02 |
Saint Petersburg Open 2021: 29% -> 14% |
| 2023-09-20 | 101 -> 98 | 269.93 | |
| 2023-09-06 | 102 -> 101 | 269.93 | |
| 2023-09-03 | 78 -> 102 | 295.92 -> 269.93 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-12 | 82 -> 78 | 290.52 -> 295.92 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 75 -> 82 | 313.05 -> 290.52 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-20 | 76 -> 75 | 307.94 -> 313.05 | |
| 2023-07-06 | 77 -> 76 | 307.94 | |
| 2023-06-19 | 79 -> 77 | 307.94 |
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 | 57% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 733 |
|
21/76 | 14% | 3.45 | RR | Saint Petersburg Open 2021 |