Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Internal rating (RR)
Rating date Sept. 3, 2023 (latest changes Sept. 3, 2023).
102 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 | 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 | |
2023-06-12 | 80 -> 79 | 302.48 -> 307.94 |
Moscow Riichi 2022: 100% -> 86% |
2023-06-11 | 62 -> 80 | 323.86 -> 302.48 | |
2023-05-28 | 59 -> 62 | 343.63 -> 323.86 |
Saint Petersburg Open 2021: 57% -> 43% |
2023-05-20 | 60 -> 59 | 337.27 -> 343.63 |
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 |