Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Internal rating (RR)

Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).

5 place (662.04).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001

p1 = (746.27 * 3.50 * 0.29 + 981.98 * 4.05 * 0.43 + 906.67 * 4.20 * 0.71 + 172.41 * 3.75 * 1 + 775.70 * 4 * 1) / (3.50 * 0.29 + 4.05 * 0.43 + 4.20 * 0.71 + 3.75 * 1 + 4 * 1) = 661.4478593843617

p2 = (775.70 * 4 * 1 + 906.67 * 4.20 * 0.71 + 981.98 * 4.05 * 0.43 + 746.27 * 3.50 * 0.29) / max_coefficients = 662.6383862103543

score = 661.4478593843617 * 0.5 + 662.6383862103543 * 0.5 = 662.0431227973579

Rating changes

Show

all results
Date Place Points Reason
2024-01-06 4 -> 5 672.86 -> 662.04

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 4 662.61 -> 672.86

Agari team tournament: 14% -> 0%
2023-12-12 4 675.46 -> 662.61

Moscow Riichi 2022: 57% -> 43%
2023-11-28 4 674.03 -> 675.46

Saint Petersburg Open 2021: 14% -> 0%
2023-11-20 4 689.01 -> 674.03

Tenpai can't buy happiness: 43% -> 29%
2023-11-06 4 697.42 -> 689.01

IX Russian Riichi Championship: 100% -> 86%
2023-10-19 5 -> 4 688.74 -> 697.42

Agari team tournament: 29% -> 14%
2023-10-12 4 -> 5 699.14 -> 688.74

Moscow Riichi 2022: 71% -> 57%
2023-09-28 4 697.89 -> 699.14

Saint Petersburg Open 2021: 29% -> 14%
2023-09-20 4 711.56 -> 697.89

Tenpai can't buy happiness: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 776 2023-09-03 25/108 100% 4.00 RR SPB Riichi Open 2023
2 172 2023-06-11 73/88 100% 3.75 RR Money can not buy tenpai
3 907 2022-11-06 8/76 71% 4.20 RR IX Russian Riichi Championship
4 982 2022-06-12 3/112 43% 4.05 RR Moscow Riichi 2022
5 746 2022-03-20 18/68 29% 3.50 RR Tenpai can't buy happiness
6 0 2021-12-19 48/48 0% 3.10 RR Agari team tournament
7 573 2021-11-28 33/76 0% 3.45 RR Saint Petersburg Open 2021
8 839 2020-01-26 6/32 0% 2.70 RR The last chance: back to 2019
9 577 2019-12-15 48/112 0% 4.05 EMA VIII Russian Riichi Championship
10 429 2019-11-24 37/64 0% 3.45 EMA Saint Petersburg Open 2019
11 968 2019-11-04 3/64 0% 3.85 EMA Aki Shanten 2019
12 909 2019-10-20 6/56 0% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation
13 478 2019-09-15 13/24 0% 2.20 EMA Valencia Riichi 2019
14 629 2019-07-21 14/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
15 77 2019-06-02 37/40 0% 2.90 RR Summer Cup 2019
16 60 2019-05-04 79/84 0% 4.20 EMA Haru Shanten 2019
17 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019
18 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018
19 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament
20 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
21 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018
22 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018
23 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon
24 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018
25 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
26 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018
27 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018
28 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017
29 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
30 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017
31 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017
32 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017
33 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017
34 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017
35 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules)
36 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017
37 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016
38 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
39 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
40 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016
41 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016
42 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016