Kotova Velena

From Izhevsk, Russia

EMA: 15990160

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Internal rating (RR)

Rating date March 20, 2023 (latest changes March 20, 2023).

38 place (435.53).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.45 * 0.71) = 13.714185

p1 = (447.76 * 3.50 * 0.86 + 893.33 * 4.20 * 1 + 0 + 0 + 0) / (3.50 * 0.86 + 4.20 * 1 + 1 + 1 + 1) = 499.53871870664767

p2 = (893.33 * 4.20 * 1 + 447.76 * 3.50 * 0.86) / max_coefficients = 371.52918675079854

score = 499.53871870664767 * 0.5 + 371.52918675079854 * 0.5 = 435.5339527287231

Rating changes

Show

all results
Date Place Points Reason
2023-03-20 35 -> 38 435.66 -> 435.53

Tenpai can't buy happiness: 100% -> 86%
2023-03-06 37 -> 35 435.66
2023-02-19 38 -> 37 433.16 -> 435.66
2023-01-28 40 -> 38 429.40 -> 433.16
2022-12-19 42 -> 40 427.66 -> 429.40
2022-11-28 44 -> 42 423.53 -> 427.66
2022-11-06 126 -> 44 322.92 -> 423.53

IX Russian Riichi Championship: 0% -> 100%
2020-02-01 126 322.92

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 893 2022-11-06 9/76 100% 4.20 RR IX Russian Riichi Championship
2 448 2022-03-20 38/68 86% 3.50 RR Tenpai can't buy happiness
3 133 2018-12-02 14/16 0% 2.30 RR Arkhangelsk Championship
4 452 2018-10-28 18/32 0% 2.70 EMA Tsukimi 2018
5 887 2018-06-11 9/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
6 718 2018-05-01 21/72 0% 3.85 EMA Haru Shanten 2018
7 667 2017-10-22 22/64 0% 3.45 EMA Moscow Riichi Open 2017
8 0 2016-03-13 100/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
9 795 2016-02-22 9/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
10 137 2015-10-18 45/52 0% 2.90 EMA Russian Open Riichi Championship 2015
11 67 2015-07-12 15/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2015
12 895 2015-04-05 3/20 0% 1.30 RR "Haku no Ten" autumn riichi mahjong tournament 2015
13 87 2014-10-18 22/24 0% 1.40 EMA Vologda Riichi Championship 2014
14 175 2014-09-21 53/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014
15 333 2014-06-29 11/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2014
16 267 2014-02-15 56/76 0% 2.50 RR Moscow Riichi 2014
17 366 2013-12-08 46/72 0% 3.25 EMA Russian Riichi Championship 2013
18 733 2013-03-31 5/16 0% 1.00 RR "Haku no Ten" spring riichi mahjong tournament 2013