Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Internal rating (RR)
Rating date Nov. 28, 2022 (latest changes Nov. 28, 2022).
2 place (746.69).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.10 * 1) = 14.85
p1 = (573.33 * 3.45 * 0.86 + 0 * 3.10 * 1 + 746.27 * 3.50 * 1 + 981.98 * 4.05 * 1 + 906.67 * 4.20 * 1) / (3.45 * 0.86 + 3.10 * 1 + 3.50 * 1 + 4.05 * 1 + 4.20 * 1) = 679.0763966632213
p2 = (981.98 * 4.05 * 1 + 906.67 * 4.20 * 1 + 746.27 * 3.50 * 1 + 573.33 * 3.45 * 0.86) / max_coefficients = 814.2969696969698
score = 679.0763966632213 * 0.5 + 814.2969696969698 * 0.5 = 746.6866831800955
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2022-11-28 | 2 | 745.19 -> 746.69 |
Saint Petersburg Open 2021: 100% -> 86% |
2022-11-06 | 14 -> 2 | 583.22 -> 745.19 |
IX Russian Riichi Championship: 0% -> 100% |
2022-10-14 | 9 -> 14 | 683.76 -> 583.22 | |
2021-02-01 | 14 -> 9 | 719.01 -> 683.76 | |
2020-02-01 | 14 | 719.01 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 907 |
|
8/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
2 | 982 |
|
3/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
3 | 746 |
|
18/68 | 100% | 3.50 | RR | Tenpai can't buy happiness |
4 | 0 |
|
48/48 | 100% | 3.10 | RR | Agari team tournament |
5 | 573 |
|
33/76 | 86% | 3.45 | RR | Saint Petersburg Open 2021 |
6 | 839 |
|
6/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
7 | 577 |
|
48/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
8 | 429 |
|
37/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
9 | 968 |
|
3/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
10 | 909 |
|
6/56 | 0% | 3.18 | EMA | Tri Nitro Tournament 2019 - 7th Detonation |
11 | 478 |
|
13/24 | 0% | 2.20 | EMA | Valencia Riichi 2019 |
12 | 629 |
|
14/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
13 | 77 |
|
37/40 | 0% | 2.90 | RR | Summer Cup 2019 |
14 | 60 |
|
79/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
15 | 617 |
|
19/48 | 0% | 3.10 | RR | Agari team tournament 2019 |
16 | 821 |
|
8/40 | 0% | 2.90 | RR | North Cup 2018 |
17 | 508 |
|
32/64 | 0% | 3.45 | EMA | White Dragon Tournament |
18 | 835 |
|
16/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
19 | 957 |
|
3/48 | 0% | 2.80 | EMA | 1st Spanish Riichi Open 2018 |
20 | 149 |
|
41/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 |
21 | 926 |
|
3/28 | 0% | 3.00 | RR | Moscow Open Riichi Marathon |
22 | 613 |
|
13/32 | 0% | 2.85 | EMA | 5th Prague Open Riichi Championship 2018 |
23 | 859 |
|
11/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
24 | 859 |
|
11/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
25 | 340 |
|
32/48 | 0% | 2.80 | EMA | Great Wave 2018 |
26 | 687 |
|
27/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
27 | 845 |
|
12/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
28 | 48 |
|
61/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 |
29 | 111 |
|
25/28 | 0% | 2.60 | RR | Moscow Riichi Half Marathon 2017 |
30 | 407 |
|
17/28 | 0% | 2.30 | EMA | Riichi Open Bratislava 2017 |
31 | 57 |
|
34/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2017 |
32 | 913 |
|
3/24 | 0% | 2.90 | EMA | Prague Open 2017 |
33 | 282 |
|
29/40 | 0% | 2.00 | RR | Moscow championship 2017 (JPML-A rules) |
34 | 733 |
|
5/16 | 0% | 2.30 | RR | February mini-tournament glhf; 2017 |
35 | 391 |
|
15/24 | 0% | 1.60 | RR | December tournament glhf; 2016 |
36 | 507 |
|
36/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 |
37 | 194 |
|
26/32 | 0% | 1.60 | RR | Tournament of 4 winds. West cup 2016 |
38 | 103 |
|
79/88 | 0% | 3.45 | EMA | V Russian Riichi Championship 2016 |
39 | 263 |
|
15/20 | 0% | 1.50 | RR | August tournament glhf; 2016 |
40 | 0 |
|
24/24 | 0% | 1.60 | RR | May tournament glhf; 2016 |