Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Internal rating (RR)
Rating date July 20, 2023 (latest changes July 20, 2023).
4 place (670.41).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 3.50 * 0.57) = 13.421155
p1 = (573.33 * 3.45 * 0.43 + 0 * 3.10 * 0.43 + 746.27 * 3.50 * 0.57 + 981.98 * 4.05 * 0.86 + 906.67 * 4.20 * 1 + 172.41 * 3.75 * 1) / (3.45 * 0.43 + 3.10 * 0.43 + 3.50 * 0.57 + 4.05 * 0.86 + 4.20 * 1 + 3.75 * 1) = 628.739528058226
p2 = (906.67 * 4.20 * 1 + 981.98 * 4.05 * 0.86 + 746.27 * 3.50 * 0.57 + 573.33 * 3.45 * 0.43) / max_coefficients = 712.0802941326585
score = 628.739528058226 * 0.5 + 712.0802941326585 * 0.5 = 670.4099110954423
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-07-20 | 4 | 672.78 -> 670.41 |
Tenpai can't buy happiness: 71% -> 57% |
| 2023-06-19 | 5 -> 4 | 664.63 -> 672.78 |
Agari team tournament: 57% -> 43% |
| 2023-06-12 | 4 -> 5 | 675.96 -> 664.63 |
Moscow Riichi 2022: 100% -> 86% |
| 2023-06-11 | 2 -> 4 | 794.17 -> 675.96 |
Money can not buy tenpai: 0% -> 100% |
| 2023-05-28 | 2 | 795.68 -> 794.17 |
Saint Petersburg Open 2021: 57% -> 43% |
| 2023-05-20 | 2 | 793.81 -> 795.68 |
Tenpai can't buy happiness: 86% -> 71% |
| 2023-05-05 | 9 -> 2 | 683.76 -> 793.81 | |
| 2021-02-01 | 14 -> 9 | 719.01 -> 683.76 | |
| 2020-02-01 | 14 | 719.01 |