Aleshin Sergey

From Moscow, Russia

EMA: 15990200

Player page

EMA

Rating date March 2, 2021 (latest changes Feb. 25, 2021).

21 place (769.61).

p1 = (991 * 3.50 * 0.50 + 905 * 3.50 * 0.50 + 884 * 2.50 * 0.50 + 663 * 4 * 0.50 + 587 * 2.50 * 0.50 + 360 * 6 * 0.50) / (3.50 * 0.50 + 3.50 * 0.50 + 2.50 * 0.50 + 4 * 0.50 + 2.50 * 0.50 + 6 * 0.50) = 687.5227272727273

p2 = (991 * 3.50 * 0.50 + 905 * 3.50 * 0.50 + 884 * 2.50 * 0.50 + 663 * 4 * 0.50) / (3.50 * 0.50 + 3.50 * 0.50 + 2.50 * 0.50 + 4 * 0.50) = 851.7037037037037

score = 687.5227272727273 * 0.5 + 851.7037037037037 * 0.5 = 769.6132154882155

Chart scale: normalized original

Rating changes

Show

Date Place Points Reason
2021-02-23 22 -> 21 769.61
2021-01-19 21 -> 22 769.61
2021-01-06 23 -> 21 769.61
2020-12-16 22 -> 23 777.18 -> 769.61

VIII Russian Riichi Championship: 100% -> 50%

2020-12-09 23 -> 22 777.18
2020-12-02 24 -> 23 777.18
2020-11-25 24 773.62 -> 777.18

Saint Petersburg Open 2019: 100% -> 50%

2020-11-18 18 -> 24 813.21 -> 773.62
2020-11-05 10 -> 18 820.46 -> 813.21

Aki Shanten 2019: 100% -> 50%

2020-10-27 13 -> 10 820.46

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 991 2019-12-15 2/112 50% 3.50 EMA VIII Russian Riichi Championship
2 587 2019-11-24 27/64 50% 2.50 EMA Saint Petersburg Open 2019
3 905 2019-11-04 7/64 50% 3.50 EMA Aki Shanten 2019
4 884 2019-10-20 6/44 50% 2.50 EMA Minsk Midori open 2019
5 360 2019-06-23 90/140 50% 6.00 CHAMP. 5 European Riichi Championship 2019
6 663 2019-05-04 29/84 50% 4.00 EMA Haru Shanten 2019
7 111 2018-12-16 57/64 0% 2.50 EMA White Dragon Tournament
8 901 2018-11-18 10/92 0% 3.00 EMA VII Russian Riichi Championship "Aki Shanten"
9 563 2018-06-11 32/72 0% 2.50 EMA RCR Saint Petersburg South Cup 2018
10 936 2018-03-25 4/48 0% 3.00 EMA Great Wave 2018
11 446 2017-12-11 47/84 0% 3.00 EMA VI Russian Riichi Championship 2017
12 127 2017-11-12 63/72 0% 2.50 EMA Perm Riichi 2017 Aki Shanten
13 794 2017-10-22 14/64 0% 2.50 EMA Moscow Riichi Open 2017
14 494 2016-09-11 45/88 0% 3.00 EMA V Russian Riichi Championship 2016
15 769 2016-02-22 10/40 0% 2.00 EMA Ivanovo Region Riichi Championship 2016
16 118 2015-10-18 46/52 0% 2.50 EMA Russian Open Riichi Championship 2015
17 686 2015-08-22 12/36 0% 1.00 EMA Nizhny Novgorod Riichi Championship 2015
18 635 2014-12-07 24/64 0% 2.50 EMA Russian Open Riichi Championship 2014