Shirshov Alexander

From Saint Petersburg, Russia

EMA: 15990308

Player page

Internal rating (RR)

Rating date April 29, 2019 (latest changes April 29, 2019).

20 place (670.88).

max_coefficients = (3.85 * 1 + 3.80 * 1 + 3.55 * 1 + 3.45 * 1) = 14.649999999999999

p1 = (512.82 * 1.80 * 0.14 + 615.38 * 1.80 * 0.43 + 873.02 * 3.45 * 0.43 + 554.22 * 3.40 * 0.57 + 612.90 * 2.70 * 0.86 + 676.06 * 3.55 * 1 + 956.52 * 2.50 * 1 + 871.79 * 2.90 * 1) / (1.80 * 0.14 + 1.80 * 0.43 + 3.45 * 0.43 + 3.40 * 0.57 + 2.70 * 0.86 + 3.55 * 1 + 2.50 * 1 + 2.90 * 1) = 745.3179588018558

p2 = (871.79 * 2.90 * 1 + 676.06 * 3.55 * 1 + 956.52 * 2.50 * 1 + 612.90 * 2.70 * 0.86) / max_coefficients = 596.441638225256

score = 745.3179588018558 * 0.5 + 596.441638225256 * 0.5 = 670.8797985135559

Rating changes

Show

Date Place Points Reason
2019-04-22 20 683.15 -> 670.88

Moscow Riichi Open 2017: 57% -> 43%

2019-04-11 20 680.31 -> 683.15

VI Russian Riichi Championship 2017: 71% -> 57%

2019-04-03 20 678.56 -> 680.31

Saint Petersburg championship. West cup 2017: 29% -> 14%

2019-04-01 20 677.63 -> 678.56

Saint Petersburg championship. Northern cup 2017: 57% -> 43%

2019-03-18 20 673.34 -> 677.63

Saint Petersburg championship. South cup 2017: 14% -> 0%

2019-03-17 21 -> 20 673.34
2019-03-11 22 -> 21 673.34
2019-03-04 22 672.08 -> 673.34

East Cup 2018: 100% -> 86%

2019-02-22 21 -> 22 688.73 -> 672.08

Moscow Riichi Open 2017: 71% -> 57%

2019-02-11 22 -> 21 686.46 -> 688.73

VI Russian Riichi Championship 2017: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 872 2018-12-23 6/40 100% 2.90 RR North Cup 2018
2 957 2018-09-23 2/24 100% 2.50 RR West cup 2018
3 676 2018-06-11 24/72 100% 3.55 EMA RCR Saint Petersburg South Cup 2018
4 613 2018-03-04 13/32 86% 2.70 RR East Cup 2018
5 554 2017-12-11 38/84 57% 3.40 EMA VI Russian Riichi Championship 2017
6 873 2017-10-22 9/64 43% 3.45 EMA Moscow Riichi Open 2017
7 615 2017-10-01 16/40 43% 1.80 RR Saint Petersburg championship. Northern cup 2017
8 513 2017-06-03 20/40 14% 1.80 RR Saint Petersburg championship. West cup 2017
9 186 2017-03-18 36/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
10 127 2016-12-04 63/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
11 323 2016-10-16 22/32 0% 1.60 RR Tournament of 4 winds. West cup 2016