Petrushchenko Sergey

From Moscow, Russia

EMA: 15990288

Player page

EMA

Rating date Feb. 27, 2021 (latest changes Feb. 25, 2021).

39 place (715.07).

p1 = (968 * 3.50 * 0.50 + 909 * 4.50 * 0.50 + 763 * 6 * 0.50 + 577 * 3.50 * 0.50 + 478 * 2.50 * 0.50 + 429 * 2.50 * 0.50 + 60 * 4 * 0.50) / (3.50 * 0.50 + 4.50 * 0.50 + 6 * 0.50 + 3.50 * 0.50 + 2.50 * 0.50 + 2.50 * 0.50 + 4 * 0.50) = 625.7924528301887

p2 = (968 * 3.50 * 0.50 + 909 * 4.50 * 0.50 + 763 * 6 * 0.50 + 577 * 3.50 * 0.50) / (3.50 * 0.50 + 4.50 * 0.50 + 6 * 0.50 + 3.50 * 0.50) = 804.3428571428572

score = 625.7924528301887 * 0.5 + 804.3428571428572 * 0.5 = 715.0676549865229

Chart scale: normalized original

Rating changes

Show

Date Place Points Reason
2021-01-19 40 -> 39 715.07
2021-01-06 42 -> 40 715.07
2020-12-16 59 -> 42 688.96 -> 715.07

VIII Russian Riichi Championship: 100% -> 50%

2020-12-09 62 -> 59 688.96
2020-11-25 68 -> 62 682.45 -> 688.96

Saint Petersburg Open 2019: 100% -> 50%

2020-11-18 47 -> 68 736.84 -> 682.45
2020-11-10 48 -> 47 736.84
2020-11-05 39 -> 48 761.15 -> 736.84

Aki Shanten 2019: 100% -> 50%

2020-10-27 38 -> 39 761.15
2020-10-21 31 -> 38 776.98 -> 761.15

Tri Nitro Tournament 2019 - 7th Detonation: 100% -> 50%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 577 2019-12-15 48/112 50% 3.50 EMA VIII Russian Riichi Championship
2 429 2019-11-24 37/64 50% 2.50 EMA Saint Petersburg Open 2019
3 968 2019-11-04 3/64 50% 3.50 EMA Aki Shanten 2019
4 909 2019-10-20 6/56 50% 4.50 EMA Tri Nitro Tournament 2019 - 7th Detonation
5 478 2019-09-15 13/24 50% 2.50 EMA Valencia Riichi 2019
6 763 2019-06-23 34/140 50% 6.00 CHAMP. 5 European Riichi Championship 2019
7 60 2019-05-04 79/84 50% 4.00 EMA Haru Shanten 2019
8 508 2018-12-16 32/64 0% 2.50 EMA White Dragon Tournament
9 835 2018-11-18 16/92 0% 3.00 EMA VII Russian Riichi Championship "Aki Shanten"
10 957 2018-09-16 3/48 0% 3.50 EMA 1st Spanish Riichi Open 2018
11 613 2018-06-17 13/32 0% 4.00 EMA 5th Prague Open Riichi Championship 2018
12 859 2018-06-11 11/72 0% 2.50 EMA RCR Saint Petersburg South Cup 2018
13 859 2018-05-01 11/72 0% 3.50 EMA Haru Shanten 2018
14 340 2018-03-25 32/48 0% 3.00 EMA Great Wave 2018
15 687 2017-12-11 27/84 0% 3.00 EMA VI Russian Riichi Championship 2017
16 845 2017-11-12 12/72 0% 2.50 EMA Perm Riichi 2017 Aki Shanten
17 48 2017-10-22 61/64 0% 2.50 EMA Moscow Riichi Open 2017
18 407 2017-09-03 17/28 0% 2.50 EMA Riichi Open Bratislava 2017
19 913 2017-06-04 3/24 0% 2.50 EMA Prague Open 2017
20 507 2016-12-04 36/72 0% 2.50 EMA Saint Petersburg Riichi Open 2016
21 103 2016-09-11 79/88 0% 3.00 EMA V Russian Riichi Championship 2016