Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Common russian riichi rating (CRR)

Rating date Sept. 14, 2024 (latest changes Sept. 14, 2024).

17 place (687.07).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284

p1 = (906.67 * 4.20 * 0.14 + 739.13 * 2.80 * 0.29 + 172.41 * 3.75 * 0.71 + 775.70 * 4 * 0.86 + 871.79 * 2.90 * 1 + 607.84 * 3.05 * 1 + 86.96 * 2.10 * 1 + 490.20 * 3.05 * 1 + 898.73 * 3.65 * 1 + 778.95 * 3.85 * 1) / (4.20 * 0.14 + 2.80 * 0.29 + 3.75 * 0.71 + 4 * 0.86 + 2.90 * 1 + 3.05 * 1 + 2.10 * 1 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1) = 635.6814307489917

p2 = (898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 775.70 * 4 * 0.86 + 871.79 * 2.90 * 1) / max_coefficients = 738.4501944823678

score = 635.6814307489917 * 0.5 + 738.4501944823678 * 0.5 = 687.0658126156798

Rating changes

Show

all results
Date Place Points Reason
2024-09-06 17 690.11 -> 687.07

IX Russian Riichi Championship: 29% -> 14%
2024-09-03 15 -> 17 692.17 -> 690.11

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 21 -> 15 663.05 -> 692.17

SPB Riichi Open 2024: 0% -> 100%
2024-08-26 22 -> 21 663.05
2024-08-18 21 -> 22 664.03 -> 663.05

Meeting in the billiard room: 43% -> 29%
2024-08-11 26 -> 21 655.33 -> 664.03

Money can not buy tenpai: 86% -> 71%
2024-08-04 43 -> 26 554.23 -> 655.33

Riichi over Volga: 0% -> 100%
2024-07-14 39 -> 43 554.23
2024-07-06 36 -> 39 563.50 -> 554.23

IX Russian Riichi Championship: 43% -> 29%
2024-06-18 35 -> 36 565.21 -> 563.50

Meeting in the billiard room: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 779 2024-09-01 22/96 100% 3.85 RR SPB Riichi Open 2024
2 899 2024-08-04 9/80 100% 3.65 RR Riichi over Volga
3 490 2024-06-09 27/52 100% 3.05 RR Agari Summer Tournament 2024
4 234 2024-05-12 83/108 100% 4.60 RR X Russian Championship
5 87 2024-03-30 43/47 100% 2.10 RR Seihoku spring tournament 2024
6 608 2024-03-10 21/52 100% 3.05 RR Agari Spring Tournament 2024
7 872 2023-11-26 6/40 100% 2.90 CRR Autumn Agari tournament
8 776 2023-09-03 25/108 86% 4.00 RR SPB Riichi Open 2023
9 172 2023-06-11 73/88 71% 3.75 RR Money can not buy tenpai
10 739 2022-12-18 7/24 29% 2.80 CRR Meeting in the billiard room
11 907 2022-11-06 8/76 14% 4.20 RR IX Russian Riichi Championship
12 982 2022-06-12 3/112 0% 4.05 RR Moscow Riichi 2022
13 746 2022-03-20 18/68 0% 3.50 RR Tenpai can't buy happiness
14 0 2021-12-19 48/48 0% 3.10 RR Agari team tournament
15 573 2021-11-28 33/76 0% 3.45 RR Saint Petersburg Open 2021
16 737 2020-02-02 6/20 0% 2.40 CRR double-burning-2020
17 839 2020-01-26 6/32 0% 2.70 RR The last chance: back to 2019
18 577 2019-12-15 48/112 0% 4.05 EMA VIII Russian Riichi Championship
19 429 2019-11-24 37/64 0% 3.45 EMA Saint Petersburg Open 2019
20 968 2019-11-04 3/64 0% 3.85 EMA Aki Shanten 2019
21 909 2019-10-20 6/56 0% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation
22 478 2019-09-15 13/24 0% 2.20 EMA Valencia Riichi 2019
23 629 2019-07-21 14/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
24 77 2019-06-02 37/40 0% 2.90 RR Summer Cup 2019
25 60 2019-05-04 79/84 0% 4.20 EMA Haru Shanten 2019
26 67 2019-03-24 15/16 0% 2.60 CRR Double burning
27 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019
28 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018
29 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament
30 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
31 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018
32 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018
33 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon
34 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018
35 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
36 333 2018-05-20 19/28 0% 3.50 CRR A-League
37 421 2018-05-12 12/20 0% 1.50 CRR Agari tournament. First stage
38 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018
39 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018
40 0 2018-01-20 28/28 0% 1.70 CRR Team tournament Agari. Season event
41 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017
42 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
43 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017
44 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017
45 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017
46 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017
47 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017
48 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules)
49 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017
50 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016
51 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
52 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
53 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016
54 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016
55 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016