Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

Internal rating (RR)

Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).

9 place (683.76).

max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645

p1 = (60.24 * 4.20 * 0.29 + 76.92 * 2.90 * 0.43 + 628.57 * 3.20 * 0.43 + 478.26 * 2.20 * 0.57 + 909.09 * 3.18 * 0.71 + 968.25 * 3.85 * 0.71 + 428.57 * 3.45 * 0.71 + 576.58 * 4.05 * 0.86 + 838.71 * 2.70 * 0.86) / (4.20 * 0.29 + 2.90 * 0.43 + 3.20 * 0.43 + 2.20 * 0.57 + 3.18 * 0.71 + 3.85 * 0.71 + 3.45 * 0.71 + 4.05 * 0.86 + 2.70 * 0.86) = 619.1780532154115

p2 = (968.25 * 3.85 * 0.71 + 909.09 * 3.18 * 0.71 + 576.58 * 4.05 * 0.86 + 838.71 * 2.70 * 0.86) / max_coefficients = 748.3476319186373

score = 619.1780532154115 * 0.5 + 748.3476319186373 * 0.5 = 683.7628425670243

Rating changes

Show

all results
Date Place Points Reason
2021-02-01 14 -> 9 719.01 -> 683.76
2020-02-01 14 719.01

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 839 2020-01-26 6/32 86% 2.70 RR The last chance: back to 2019 Moscow
2 577 2019-12-15 48/112 86% 4.05 EMA VIII Russian Riichi Championship Moscow
3 429 2019-11-24 37/64 71% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
4 968 2019-11-04 3/64 71% 3.85 EMA Aki Shanten 2019 Perm
5 909 2019-10-20 6/56 71% 3.18 EMA Tri Nitro Tournament 2019 - 7th Detonation Paris
6 478 2019-09-15 13/24 57% 2.20 EMA Valencia Riichi 2019 Valencia
7 629 2019-07-21 14/36 43% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
8 77 2019-06-02 37/40 43% 2.90 RR Summer Cup 2019 Saint Petersburg
9 60 2019-05-04 79/84 29% 4.20 EMA Haru Shanten 2019 Perm
10 617 2019-01-13 19/48 0% 3.10 RR Agari team tournament 2019 Moscow
11 821 2018-12-23 8/40 0% 2.90 RR North Cup 2018 Saint Petersburg
12 508 2018-12-16 32/64 0% 3.45 EMA White Dragon Tournament Moscow
13 835 2018-11-18 16/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
14 957 2018-09-16 3/48 0% 2.80 EMA 1st Spanish Riichi Open 2018 Valencia
15 149 2018-08-19 41/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
16 926 2018-07-15 3/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
17 613 2018-06-17 13/32 0% 2.85 EMA 5th Prague Open Riichi Championship 2018 Prague
18 859 2018-06-11 11/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
19 859 2018-05-01 11/72 0% 3.85 EMA Haru Shanten 2018 Perm
20 340 2018-03-25 32/48 0% 2.80 EMA Great Wave 2018 Helsinki
21 687 2017-12-11 27/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
22 845 2017-11-12 12/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
23 48 2017-10-22 61/64 0% 3.45 EMA Moscow Riichi Open 2017 Moscow
24 111 2017-09-24 25/28 0% 2.60 RR Moscow Riichi Half Marathon 2017 Moscow
25 407 2017-09-03 17/28 0% 2.30 EMA Riichi Open Bratislava 2017 Bratislava
26 57 2017-07-09 34/36 0% 3.20 RR Moscow Open Riichi Marathon 2017 Moscow
27 913 2017-06-04 3/24 0% 2.90 EMA Prague Open 2017 Prague
28 282 2017-03-11 29/40 0% 2.00 RR Moscow championship 2017 (JPML-A rules) Moscow
29 733 2017-02-12 5/16 0% 2.30 RR February mini-tournament glhf; 2017 Moscow
30 391 2016-12-10 15/24 0% 1.60 RR December tournament glhf; 2016 Moscow
31 507 2016-12-04 36/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
32 194 2016-10-16 26/32 0% 1.60 RR Tournament of 4 winds. West cup 2016 Saint Petersburg
33 103 2016-09-11 79/88 0% 3.45 EMA V Russian Riichi Championship 2016 Moscow
34 263 2016-08-27 15/20 0% 1.50 RR August tournament glhf; 2016 Moscow
35 0 2016-05-28 24/24 0% 1.60 RR May tournament glhf; 2016 Moscow