Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Internal rating (RR)
Rating date July 2, 2025 (latest changes June 15, 2025).
27 place (670.13).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (775.70 * 4 * 0.29 + 607.84 * 3.05 * 0.71 + 86.96 * 2.10 * 0.71 + 233.64 * 4.60 * 0.86 + 490.20 * 3.05 * 0.86 + 898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 709.68 * 3.10 * 1 + 523.81 * 2.60 * 1 + 764.71 * 3.05 * 1 + 372.88 * 3.25 * 1 + 677.42 * 2.40 * 1 + 514.29 * 1.90 * 1 + 866.67 * 2 * 1) / (4 * 0.29 + 3.05 * 0.71 + 2.10 * 0.71 + 4.60 * 0.86 + 3.05 * 0.86 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 2.40 * 1 + 1.90 * 1 + 2 * 1) = 611.959071800267
p2 = (898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 764.71 * 3.05 * 1) / max_coefficients = 728.3019639882219
score = 611.959071800267 * 0.5 + 728.3019639882219 * 0.5 = 670.1305178942445
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-15 | 16 -> 27 | 701.08 -> 670.13 |
13 bloody tiles: 0% -> 100% |
| 2025-06-11 | 21 -> 16 | 697.65 -> 701.08 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 21 | 696.76 -> 697.65 |
Agari Summer Tournament 2024: 100% -> 86% |
| 2025-06-08 | 21 | 690.56 -> 696.76 |
Random not fault: 0% -> 100% |
| 2025-05-30 | 21 | 688.31 -> 690.56 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-12 | 24 -> 21 | 672.76 -> 688.31 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 24 | 672.65 -> 672.76 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 17 -> 24 | 687.54 -> 672.65 |
Riichi over The Volga 2025: 0% -> 100% SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-26 | 19 -> 17 | 676.87 -> 687.54 |
Seihoku spring tournament 2025: 0% -> 100% |
| 2025-04-11 | 19 | 673.42 -> 676.87 |
Money can not buy tenpai: 29% -> 14% |