Bykova Yulia

From Arkhangelsk, Russia

EMA: 15990258

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Common russian riichi rating (CRR)

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

28 place (553.01).

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 + 909.09 * 2.50 * 0.43 + 682.54 * 3.85 * 0.57 + 603.60 * 4.05 * 0.57 + 0) / (2.30 * 0.29 + 2.50 * 0.43 + 3.85 * 0.57 + 4.05 * 0.57 + 1) = 611.9566402997789

p2 = (682.54 * 3.85 * 0.57 + 603.60 * 4.05 * 0.57 + 909.09 * 2.50 * 0.43 + 851.85 * 2.30 * 0.29) / max_coefficients = 494.0597348338755

score = 611.9566402997789 * 0.5 + 494.0597348338755 * 0.5 = 553.0081875668272

Rating changes

Show

Date Place Points Reason
2021-04-15 28 556.02 -> 553.01

VIII Russian Riichi Championship: 71% -> 57%

2021-04-13 29 -> 28 556.02
2021-04-04 26 -> 29 575.53 -> 556.02

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

2021-04-02 26 573.17 -> 575.53
2021-03-31 22 -> 26 615.09 -> 573.17

Spring Tournament: 14% -> 0%

2021-03-26 22 608.27 -> 615.09
2021-03-24 23 -> 22 601.60 -> 608.27
2021-03-22 19 -> 23 622.24 -> 601.60

Reversed Chun: 57% -> 43%

2021-03-21 20 -> 19 622.24
2021-03-08 22 -> 20 611.85 -> 622.24

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
3 909 2019-09-22 2/12 43% 2.50 CRR Reversed Chun
4 852 2019-08-04 5/28 29% 2.30 EMA Finnish Riichi Mahjong Championship 2019
5 636 2019-03-31 5/12 0% 2.20 CRR Spring Tournament
6 933 2018-12-02 2/16 0% 2.30 RR Arkhangelsk Championship
7 613 2018-10-28 13/32 0% 2.70 EMA Tsukimi 2018
8 870 2018-09-23 4/24 0% 2.50 RR West cup 2018
9 28 2018-06-11 70/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
10 507 2018-05-01 36/72 0% 3.85 EMA Haru Shanten 2018
11 1000 2018-02-25 1/16 0% 1.40 CRR Winter riichi tournament
12 928 2017-12-11 7/84 0% 3.40 EMA VI Russian Riichi Championship 2017
13 933 2017-11-26 2/16 0% 1.60 RR Arkhangelsk riichi mahjong championship 2017
14 519 2017-08-06 14/28 0% 2.30 EMA Ivanovo Region Riichi 2017
15 310 2016-12-04 50/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
16 867 2016-11-27 3/16 0% 1.60 RR Arkhangelsk riichi mahjong tournament 2016
17 69 2016-09-11 82/88 0% 3.45 EMA V Russian Riichi Championship 2016
18 182 2016-03-13 82/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
19 949 2016-02-22 3/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
20 1000 2016-01-07 1/16 0% 1.20 RR Riichi mahjong tournament
21 933 2015-11-29 2/16 0% 1.60 RR Arkhangelsk riichi mahjong championship
22 98 2015-10-18 47/52 0% 2.90 EMA Russian Open Riichi Championship 2015
23 467 2015-07-12 9/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2015