Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Common russian riichi rating (CRR)
Rating date Dec. 19, 2023 (latest changes Dec. 19, 2023).
4 place (729.40).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (739.13 * 2.80 * 0.86 + 746.27 * 3.50 * 0.29 + 981.98 * 4.05 * 0.43 + 906.67 * 4.20 * 0.86 + 172.41 * 3.75 * 1 + 775.70 * 4 * 1 + 871.79 * 2.90 * 1) / (2.80 * 0.86 + 3.50 * 0.29 + 4.05 * 0.43 + 4.20 * 0.86 + 3.75 * 1 + 4 * 1 + 2.90 * 1) = 710.1191200836915
p2 = (906.67 * 4.20 * 0.86 + 775.70 * 4 * 1 + 871.79 * 2.90 * 1 + 739.13 * 2.80 * 0.86) / max_coefficients = 748.688053603484
score = 710.1191200836915 * 0.5 + 748.688053603484 * 0.5 = 729.4035868435878
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-12-19 | 4 | 721.47 -> 729.40 |
Agari team tournament: 14% -> 0% |
| 2023-12-18 | 4 | 732.29 -> 721.47 |
Meeting in the billiard room: 100% -> 86% |
| 2023-12-12 | 3 -> 4 | 743.40 -> 732.29 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 4 -> 3 | 741.90 -> 743.40 |
Saint Petersburg Open 2021: 14% -> 0% |
| 2023-11-26 | 5 -> 4 | 714.93 -> 741.90 |
Autumn Agari tournament: 0% -> 100% |
| 2023-11-20 | 5 | 715.90 -> 714.93 |
Tenpai can't buy happiness: 43% -> 29% |
| 2023-11-06 | 5 | 722.51 -> 715.90 |
IX Russian Riichi Championship: 100% -> 86% |
| 2023-11-05 | 4 -> 5 | 722.51 | |
| 2023-10-19 | 4 | 714.94 -> 722.51 |
Agari team tournament: 29% -> 14% |
| 2023-10-12 | 4 | 736.14 -> 714.94 |
Moscow Riichi 2022: 71% -> 57% |