Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Internal rating (RR)

Rating date Jan. 3, 2025 (latest changes Jan. 3, 2025).

23 place (625.52).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (172.41 * 3.75 * 0.43 + 775.70 * 4 * 0.57 + 86.96 * 2.10 * 1 + 233.64 * 4.60 * 1 + 490.20 * 3.05 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 898.73 * 3.65 * 1 + 607.84 * 3.05 * 1) / (3.75 * 0.43 + 4 * 0.57 + 2.10 * 1 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1 + 3.05 * 1) = 562.4580169882457

p2 = (898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 607.84 * 3.05 * 1) / max_coefficients = 688.589905362776

score = 562.4580169882457 * 0.5 + 688.589905362776 * 0.5 = 625.5239611755109

Rating changes

Show

all results
Date Place Points Reason
2025-01-03 23 639.09 -> 625.52

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 23 635.46 -> 639.09

Money can not buy tenpai: 57% -> 43%
2024-11-06 18 -> 23 669.53 -> 635.46

IX Russian Riichi Championship: 14% -> 0%
2024-11-03 17 -> 18 685.16 -> 669.53

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 25 -> 17 620.62 -> 685.16

Moscow Riichi 2024: 0% -> 100%
2024-10-11 26 -> 25 616.91 -> 620.62

Money can not buy tenpai: 71% -> 57%
2024-09-06 26 620.90 -> 616.91

IX Russian Riichi Championship: 29% -> 14%
2024-09-03 26 624.66 -> 620.90

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 31 -> 26 575.75 -> 624.66

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 32 -> 31 568.69 -> 575.75

Money can not buy tenpai: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 742 2024-10-13 24/90 100% 3.75 RR Moscow Riichi 2024 Moscow
2 779 2024-09-01 22/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 899 2024-08-04 9/80 100% 3.65 RR Riichi over Volga Samara
4 490 2024-06-09 27/52 100% 3.05 RR Agari Summer Tournament 2024 Moscow
5 234 2024-05-12 83/108 100% 4.60 RR X Russian Championship Perm
6 87 2024-03-30 43/47 100% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
7 608 2024-03-10 21/52 100% 3.05 RR Agari Spring Tournament 2024 Moscow
8 776 2023-09-03 25/108 57% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 172 2023-06-11 73/88 43% 3.75 RR Money can not buy tenpai Perm
10 907 2022-11-06 8/76 0% 4.20 RR IX Russian Riichi Championship Perm
11 982 2022-06-12 3/112 0% 4.05 RR Moscow Riichi 2022 Moscow
12 746 2022-03-20 18/68 0% 3.50 RR Tenpai can't buy happiness Perm
13 0 2021-12-19 48/48 0% 3.10 RR Agari team tournament Moscow
14 573 2021-11-28 33/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
15 839 2020-01-26 6/32 0% 2.70 RR The last chance: back to 2019 Moscow
16 577 2019-12-15 48/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
17 429 2019-11-24 37/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
18 968 2019-11-04 3/64 0% 3.85 EMA Aki Shanten 2019 Perm
19 909 2019-10-20 6/56 0% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation Paris
20 478 2019-09-15 13/24 0% 2.20 EMA Valencia Riichi 2019 Valencia
21 629 2019-07-21 14/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
22 77 2019-06-02 37/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
23 60 2019-05-04 79/84 0% 4.20 EMA Haru Shanten 2019 Perm
24 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019 Moscow
25 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018 Saint Petersburg
26 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament Moscow
27 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
28 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018 Valencia
29 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
30 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
31 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018 Prague
32 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
33 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018 Perm
34 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018 Helsinki
35 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
36 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
37 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
38 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017 Moscow
39 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017 Bratislava
40 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017 Moscow
41 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017 Prague
42 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
43 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017 Moscow
44 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016 Moscow
45 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
46 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016 Saint Petersburg
47 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
48 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016 Moscow
49 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016 Moscow