Kotova Velena

From Izhevsk, Russia

EMA: 15990160

Player page

Internal rating (RR)

Rating date Oct. 19, 2023 (latest changes Oct. 19, 2023).

46 place (419.49).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.57) = 14.26417

p1 = (447.76 * 3.50 * 0.43 + 893.33 * 4.20 * 1 + 241.38 * 3.75 * 1 + 0 + 0) / (3.50 * 0.43 + 4.20 * 1 + 3.75 * 1 + 1 + 1) = 465.3985554711314

p2 = (893.33 * 4.20 * 1 + 241.38 * 3.75 * 1 + 447.76 * 3.50 * 0.43) / max_coefficients = 373.5836014293156

score = 465.3985554711314 * 0.5 + 373.5836014293156 * 0.5 = 419.4910784502235

Rating changes

Show

all results
Date Place Points Reason
2023-10-12 49 -> 46 412.21 -> 419.49
2023-09-28 50 -> 49 412.21
2023-09-20 50 419.38 -> 412.21

Tenpai can't buy happiness: 57% -> 43%
2023-09-06 51 -> 50 419.38
2023-09-03 37 -> 51 448.51 -> 419.38
2023-08-12 41 -> 37 439.19 -> 448.51
2023-07-20 42 -> 41 439.46 -> 439.19

Tenpai can't buy happiness: 71% -> 57%
2023-07-06 44 -> 42 439.46
2023-06-12 44 431.18 -> 439.46
2023-06-11 35 -> 44 445.63 -> 431.18

Money can not buy tenpai: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 241 2023-06-11 67/88 100% 3.75 RR Money can not buy tenpai
2 893 2022-11-06 9/76 100% 4.20 RR IX Russian Riichi Championship
3 448 2022-03-20 38/68 43% 3.50 RR Tenpai can't buy happiness
4 133 2018-12-02 14/16 0% 2.30 RR Arkhangelsk Championship
5 452 2018-10-28 18/32 0% 2.70 EMA Tsukimi 2018
6 887 2018-06-11 9/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
7 718 2018-05-01 21/72 0% 3.85 EMA Haru Shanten 2018
8 667 2017-10-22 22/64 0% 3.45 EMA Moscow Riichi Open 2017
9 0 2016-03-13 100/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
10 795 2016-02-22 9/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
11 137 2015-10-18 45/52 0% 2.90 EMA Russian Open Riichi Championship 2015
12 67 2015-07-12 15/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2015
13 895 2015-04-05 3/20 0% 1.30 RR "Haku no Ten" autumn riichi mahjong tournament 2015
14 87 2014-10-18 22/24 0% 1.40 EMA Vologda Riichi Championship 2014
15 175 2014-09-21 53/64 0% 3.15 RR "Japanese House" riichi mahjong cup 2014
16 333 2014-06-29 11/16 0% 1.20 RR "Haku no Ten" summer riichi mahjong tournament 2014
17 267 2014-02-15 56/76 0% 2.50 RR Moscow Riichi 2014
18 366 2013-12-08 46/72 0% 3.25 EMA Russian Riichi Championship 2013
19 733 2013-03-31 5/16 0% 1.00 RR "Haku no Ten" spring riichi mahjong tournament 2013