Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

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Internal rating (RR)

Rating date May 19, 2024 (latest changes May 12, 2024).

45 place (476.73).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999

p1 = (981.98 * 4.05 * 0.14 + 906.67 * 4.20 * 0.43 + 172.41 * 3.75 * 1 + 775.70 * 4 * 1 + 607.84 * 3.05 * 1 + 86.96 * 2.10 * 1 + 233.64 * 4.60 * 1) / (4.05 * 0.14 + 4.20 * 0.43 + 3.75 * 1 + 4 * 1 + 3.05 * 1 + 2.10 * 1 + 4.60 * 1) = 455.81475602354567

p2 = (775.70 * 4 * 1 + 607.84 * 3.05 * 1 + 906.67 * 4.20 * 0.43 + 233.64 * 4.60 * 1) / max_coefficients = 497.6363636363637

score = 455.81475602354567 * 0.5 + 497.6363636363637 * 0.5 = 476.7255598299547

Rating changes

Show

all results
Date Place Points Reason
2024-05-12 18 -> 45 541.79 -> 476.73

X Russian Championship: 0% -> 100%
2024-05-06 16 -> 18 563.27 -> 541.79

IX Russian Riichi Championship: 57% -> 43%
2024-04-12 15 -> 16 589.64 -> 563.27

Moscow Riichi 2022: 29% -> 14%
2024-03-30 7 -> 15 623.71 -> 589.64

Seihoku spring tournament 2024: 0% -> 100%
2024-03-20 8 -> 7 625.82 -> 623.71

Tenpai can't buy happiness: 14% -> 0%
2024-03-10 7 -> 8 627.10 -> 625.82

Agari Spring Tournament 2024: 0% -> 100%
2024-03-06 6 -> 7 640.91 -> 627.10

IX Russian Riichi Championship: 71% -> 57%
2024-02-12 5 -> 6 656.42 -> 640.91

Moscow Riichi 2022: 43% -> 29%
2024-01-20 5 662.04 -> 656.42

Tenpai can't buy happiness: 29% -> 14%
2024-01-06 4 -> 5 672.86 -> 662.04

IX Russian Riichi Championship: 86% -> 71%

Tournaments

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