Bykov Dmitriy

From Saint Petersburg, Russia

EMA: 15990236

Player page

Internal rating (RR)

Rating date May 2, 2019 (latest changes May 2, 2019).

33 place (615.99).

max_coefficients = (3.80 * 1 + 3.55 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.099835

p1 = (282.05 * 1.80 * 0.14 + 102.56 * 1.80 * 0.43 + 506.02 * 3.40 * 0.57 + 741.94 * 2.70 * 0.86 + 873.24 * 3.55 * 1 + 692.31 * 2.90 * 1) / (1.80 * 0.14 + 1.80 * 0.43 + 3.40 * 0.57 + 2.70 * 0.86 + 3.55 * 1 + 2.90 * 1) = 678.226051775661

p2 = (873.24 * 3.55 * 1 + 692.31 * 2.90 * 1 + 741.94 * 2.70 * 0.86 + 506.02 * 3.40 * 0.57) / max_coefficients = 553.7461963207371

score = 678.226051775661 * 0.5 + 553.7461963207371 * 0.5 = 615.986124048199

Rating changes

Show

Date Place Points Reason
2019-05-01 36 -> 33 605.59 -> 615.99
2019-04-11 33 -> 36 610.56 -> 605.59

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

2019-04-06 34 -> 33 610.56
2019-04-03 36 -> 34 606.55 -> 610.56

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

2019-04-01 40 -> 36 600.89 -> 606.55

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

2019-03-25 41 -> 40 600.89
2019-03-24 40 -> 41 600.89
2019-03-18 38 -> 40 603.06 -> 600.89

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

2019-03-17 37 -> 38 603.06
2019-03-09 36 -> 37 603.06

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 692 2018-12-23 13/40 100% 2.90 RR North Cup 2018
2 873 2018-06-11 10/72 100% 3.55 EMA RCR Saint Petersburg South Cup 2018
3 742 2018-03-04 9/32 86% 2.70 RR East Cup 2018
4 506 2017-12-11 42/84 57% 3.40 EMA VI Russian Riichi Championship 2017
5 103 2017-10-01 36/40 43% 1.80 RR Saint Petersburg championship. Northern cup 2017
6 282 2017-06-03 29/40 14% 1.80 RR Saint Petersburg championship. West cup 2017
7 860 2017-03-18 7/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
8 183 2016-12-04 59/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
9 0 2016-10-16 32/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
10 770 2016-09-11 21/88 0% 3.45 EMA V Russian Riichi Championship 2016
11 1000 2016-07-03 1/24 0% 1.40 RR Tournament of 4 winds. South cup 2016
12 596 2016-03-13 41/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
13 282 2016-02-22 29/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
14 158 2015-11-15 17/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league
15 451 2015-10-18 29/52 0% 2.90 EMA Russian Open Riichi Championship 2015
16 886 2015-08-22 5/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
17 684 2015-03-15 7/20 0% 2.10 RR Nizhny Novgorod riichi mahjong tournament