Bykova Yulia

From Arkhangelsk, Russia

EMA: 15990258

Player page

Internal rating (RR)

Rating date April 20, 2021 (latest changes April 20, 2021).

42 place (433.85).

max_coefficients = (2.90 * 0.86 + 4.05 * 0.57 + 3.85 * 0.57 + 3.45 * 0.57) = 8.970979999999999

p1 = (851.85 * 2.30 * 0.29 + 682.54 * 3.85 * 0.57 + 603.60 * 4.05 * 0.57 + 0 + 0) / (2.30 * 0.29 + 3.85 * 0.57 + 4.05 * 0.57 + 1 + 1) = 482.22396066471714

p2 = (682.54 * 3.85 * 0.57 + 603.60 * 4.05 * 0.57 + 851.85 * 2.30 * 0.29) / max_coefficients = 385.4773948888527

score = 482.22396066471714 * 0.5 + 385.4773948888527 * 0.5 = 433.8506777767849

Rating changes

Show

Date Place Points Reason
2021-04-15 38 -> 42 444.99 -> 433.85

VIII Russian Riichi Championship: 71% -> 57%

2021-04-04 38 466.99 -> 444.99

Finnish Riichi Mahjong Championship 2019: 43% -> 29%

2021-04-02 39 -> 38 466.99
2021-03-26 39 459.57 -> 466.99
2021-03-24 38 -> 39 454.19 -> 459.57
2021-03-08 40 -> 38 446.30 -> 454.19
2021-03-05 41 -> 40 446.30
2021-03-04 43 -> 41 461.33 -> 446.30

Aki Shanten 2019: 71% -> 57%

2021-02-16 44 -> 43 461.33
2021-02-15 41 -> 44 468.99 -> 461.33

VIII Russian Riichi Championship: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 604 2019-12-15 45/112 57% 4.05 EMA VIII Russian Riichi Championship
2 683 2019-11-04 21/64 57% 3.85 EMA Aki Shanten 2019
3 852 2019-08-04 5/28 29% 2.30 EMA Finnish Riichi Mahjong Championship 2019
4 933 2018-12-02 2/16 0% 2.30 RR Arkhangelsk Championship
5 613 2018-10-28 13/32 0% 2.70 EMA Tsukimi 2018
6 870 2018-09-23 4/24 0% 2.50 RR West cup 2018
7 28 2018-06-11 70/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
8 507 2018-05-01 36/72 0% 3.85 EMA Haru Shanten 2018
9 928 2017-12-11 7/84 0% 3.40 EMA VI Russian Riichi Championship 2017
10 933 2017-11-26 2/16 0% 1.60 RR Arkhangelsk riichi mahjong championship 2017
11 519 2017-08-06 14/28 0% 2.30 EMA Ivanovo Region Riichi 2017
12 310 2016-12-04 50/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
13 867 2016-11-27 3/16 0% 1.60 RR Arkhangelsk riichi mahjong tournament 2016
14 69 2016-09-11 82/88 0% 3.45 EMA V Russian Riichi Championship 2016
15 182 2016-03-13 82/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
16 949 2016-02-22 3/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
17 1000 2016-01-07 1/16 0% 1.20 RR Riichi mahjong tournament
18 933 2015-11-29 2/16 0% 1.60 RR Arkhangelsk riichi mahjong championship
19 98 2015-10-18 47/52 0% 2.90 EMA Russian Open Riichi Championship 2015
20 467 2015-07-12 9/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2015