Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Internal rating (RR)

Rating date May 17, 2021 (latest changes May 15, 2021).

7 place (686.42).

max_coefficients = (4.05 * 0.57 + 2.90 * 0.71 + 3.45 * 0.57 + 2.70 * 0.71) = 8.285580000000001

p1 = (76.92 * 2.90 * 0.14 + 628.57 * 3.20 * 0.29 + 478.26 * 2.20 * 0.29 + 909.09 * 3.18 * 0.43 + 968.25 * 3.85 * 0.43 + 428.57 * 3.45 * 0.57 + 576.58 * 4.05 * 0.57 + 838.71 * 2.70 * 0.71) / (2.90 * 0.14 + 3.20 * 0.29 + 2.20 * 0.29 + 3.18 * 0.43 + 3.85 * 0.43 + 3.45 * 0.57 + 4.05 * 0.57 + 2.70 * 0.71) = 674.2121452120899

p2 = (838.71 * 2.70 * 0.71 + 968.25 * 3.85 * 0.43 + 576.58 * 4.05 * 0.57 + 909.09 * 3.18 * 0.43) / max_coefficients = 698.6366675597844

score = 674.2121452120899 * 0.5 + 698.6366675597844 * 0.5 = 686.4244063859371

Rating changes

Show

Date Place Points Reason
2021-05-15 7 683.75 -> 686.42

Valencia Riichi 2019: 43% -> 29%

2021-05-08 7 667.12 -> 683.75
2021-05-04 8 -> 7 678.79 -> 667.12

Haru Shanten 2019: 14% -> 0%

Aki Shanten 2019: 57% -> 43%

2021-04-20 5 -> 8 706.24 -> 678.79

Tri Nitro Tournament 2019 - 7th Detonation: 57% -> 43%

2021-04-15 6 -> 5 699.16 -> 706.24

VIII Russian Riichi Championship: 71% -> 57%

2021-04-02 8 -> 6 690.62 -> 699.16

Summer Cup 2019: 29% -> 14%

2021-03-26 7 -> 8 696.77 -> 690.62

The last chance: back to 2019: 86% -> 71%

2021-03-24 9 -> 7 683.46 -> 696.77

Saint Petersburg Open 2019: 71% -> 57%

2021-03-21 10 -> 9 683.30 -> 683.46

Moscow Open Riichi Marathon 2019: 43% -> 29%

2021-03-15 10 681.70 -> 683.30

Valencia Riichi 2019: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 839 2020-01-26 6/32 71% 2.70 RR The last chance: back to 2019
2 577 2019-12-15 48/112 57% 4.05 EMA VIII Russian Riichi Championship
3 429 2019-11-24 37/64 57% 3.45 EMA Saint Petersburg Open 2019
4 968 2019-11-04 3/64 43% 3.85 EMA Aki Shanten 2019
5 909 2019-10-20 6/56 43% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation
6 478 2019-09-15 13/24 29% 2.20 EMA Valencia Riichi 2019
7 629 2019-07-21 14/36 29% 3.20 RR Moscow Open Riichi Marathon 2019
8 77 2019-06-02 37/40 14% 2.90 RR Summer Cup 2019
9 60 2019-05-04 79/84 0% 4.20 EMA Haru Shanten 2019
10 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019
11 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018
12 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament
13 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
14 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018
15 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018
16 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon
17 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018
18 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
19 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018
20 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018
21 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017
22 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
23 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017
24 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017
25 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017
26 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017
27 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017
28 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules)
29 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017
30 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016
31 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
32 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
33 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016
34 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016
35 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016