Bykov Dmitriy

From Saint Petersburg, Russia

EMA: 15990236

Player page

Internal rating (RR)

Rating date March 31, 2023 (latest changes March 30, 2023).

113 place (253.98).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.10 * 0.71) = 13.46418

p1 = (634.92 * 3.45 * 0.29 + 746.67 * 3.45 * 0.57 + 0 + 0 + 0) / (3.45 * 0.29 + 3.45 * 0.57 + 1 + 1 + 1) = 352.149028159332

p2 = (746.67 * 3.45 * 0.57 + 634.92 * 3.45 * 0.29) / max_coefficients = 155.80228428318694

score = 352.149028159332 * 0.5 + 155.80228428318694 * 0.5 = 253.97565622125944

Rating changes

Show

Date Place Points Reason
2023-03-30 111 -> 113 276.41 -> 253.98

Saint Petersburg Open 2019: 43% -> 29%

2023-03-28 101 -> 111 301.43 -> 276.41

Saint Petersburg Open 2021: 71% -> 57%

2023-03-20 104 -> 101 297.87 -> 301.43
2023-03-06 108 -> 104 297.87
2023-02-28 109 -> 108 297.87
2023-02-19 109 296.56 -> 297.87
2023-01-30 108 -> 109 315.19 -> 296.56

Saint Petersburg Open 2019: 57% -> 43%

2023-01-28 102 -> 108 335.79 -> 315.19

Saint Petersburg Open 2021: 86% -> 71%

2022-12-30 104 -> 102 335.79
2022-12-19 105 -> 104 334.66 -> 335.79

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 747 2021-11-28 20/76 57% 3.45 RR Saint Petersburg Open 2021
2 635 2019-11-24 24/64 29% 3.45 EMA Saint Petersburg Open 2019
3 692 2018-12-23 13/40 0% 2.90 RR North Cup 2018
4 873 2018-06-11 10/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
5 742 2018-03-04 9/32 0% 2.70 RR East Cup 2018
6 506 2017-12-11 42/84 0% 3.40 EMA VI Russian Riichi Championship 2017
7 103 2017-10-01 36/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
8 282 2017-06-03 29/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
9 860 2017-03-18 7/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
10 183 2016-12-04 59/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
11 0 2016-10-16 32/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
12 770 2016-09-11 21/88 0% 3.45 EMA V Russian Riichi Championship 2016
13 1000 2016-07-03 1/24 0% 1.40 RR Tournament of 4 winds. South cup 2016
14 596 2016-03-13 41/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
15 282 2016-02-22 29/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
16 158 2015-11-15 17/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league
17 451 2015-10-18 29/52 0% 2.90 EMA Russian Open Riichi Championship 2015
18 886 2015-08-22 5/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
19 684 2015-03-15 7/20 0% 2.10 RR Nizhny Novgorod riichi mahjong tournament