Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Internal rating (RR)

Rating date July 28, 2023 (latest changes July 28, 2023).

4 place (663.78).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 3.50 * 0.57) = 13.421155

p1 = (573.33 * 3.45 * 0.29 + 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 * 0.29 + 3.10 * 0.43 + 3.50 * 0.57 + 4.05 * 0.86 + 4.20 * 1 + 3.75 * 1) = 630.4752063489643

p2 = (906.67 * 4.20 * 1 + 981.98 * 4.05 * 0.86 + 746.27 * 3.50 * 0.57 + 172.41 * 3.75 * 1) / max_coefficients = 697.0875457440137

score = 630.4752063489643 * 0.5 + 697.0875457440137 * 0.5 = 663.781376046489

Rating changes

Show

all results
Date Place Points Reason
2023-07-28 4 670.41 -> 663.78

Saint Petersburg Open 2021: 43% -> 29%
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

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 172 2023-06-11 73/88 100% 3.75 RR Money can not buy tenpai Perm
2 907 2022-11-06 8/76 100% 4.20 RR IX Russian Riichi Championship Perm
3 982 2022-06-12 3/112 86% 4.05 RR Moscow Riichi 2022 Moscow
4 746 2022-03-20 18/68 57% 3.50 RR Tenpai can't buy happiness Perm
5 0 2021-12-19 48/48 43% 3.10 RR Agari team tournament Moscow
6 573 2021-11-28 33/76 29% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
7 839 2020-01-26 6/32 0% 2.70 RR The last chance: back to 2019 Moscow
8 577 2019-12-15 48/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
9 429 2019-11-24 37/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
10 968 2019-11-04 3/64 0% 3.85 EMA Aki Shanten 2019 Perm
11 909 2019-10-20 6/56 0% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation Paris
12 478 2019-09-15 13/24 0% 2.20 EMA Valencia Riichi 2019 Valencia
13 629 2019-07-21 14/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
14 77 2019-06-02 37/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
15 60 2019-05-04 79/84 0% 4.20 EMA Haru Shanten 2019 Perm
16 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019 Moscow
17 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018 Saint Petersburg
18 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament Moscow
19 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
20 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018 Valencia
21 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
22 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
23 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018 Prague
24 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
25 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018 Perm
26 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018 Helsinki
27 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
28 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
29 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
30 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017 Moscow
31 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017 Bratislava
32 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017 Moscow
33 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017 Prague
34 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
35 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017 Moscow
36 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016 Moscow
37 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
38 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016 Saint Petersburg
39 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
40 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016 Moscow
41 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016 Moscow