Kozlovskaya Yana

From Perm, Russia

EMA: 15020050

Player page

Internal rating (RR)

Rating date April 19, 2021 (latest changes April 16, 2021).

9 place (689.75).

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

p1 = (963.86 * 4.20 * 0.14 + 871.79 * 2.90 * 0.14 + 142.86 * 3.20 * 0.29 + 629.63 * 2.30 * 0.43 + 481.48 * 2.60 * 0.43 + 72.73 * 3.03 * 0.57 + 809.52 * 3.45 * 0.57 + 870.97 * 2.70 * 0.71 + 1000 * 2.90 * 0.86) / (4.20 * 0.14 + 2.90 * 0.14 + 3.20 * 0.29 + 2.30 * 0.43 + 2.60 * 0.43 + 3.03 * 0.57 + 3.45 * 0.57 + 2.70 * 0.71 + 2.90 * 0.86) = 668.1060069775319

p2 = (1000 * 2.90 * 0.86 + 870.97 * 2.70 * 0.71 + 809.52 * 3.45 * 0.57 + 629.63 * 2.30 * 0.43) / max_coefficients = 711.3905058310241

score = 668.1060069775319 * 0.5 + 711.3905058310241 * 0.5 = 689.748256404278

Rating changes

Show

Date Place Points Reason
2021-04-15 11 -> 9 668.19 -> 689.75

VIII Russian Riichi Championship: 71% -> 57%

2021-04-02 10 -> 11 676.87 -> 668.19

Summer Cup 2019: 29% -> 14%

2021-03-26 9 -> 10 685.00 -> 676.87

The last chance: back to 2019: 86% -> 71%

2021-03-24 8 -> 9 698.04 -> 685.00

Saint Petersburg Open 2019: 71% -> 57%

2021-03-21 8 689.11 -> 698.04

Moscow Open Riichi Marathon 2019: 43% -> 29%

2021-03-15 9 -> 8 689.11
2021-03-08 7 -> 9 698.95 -> 689.11

Big open chiitoitsu in a small tenpai: 100% -> 86%

And yet the sinner collects tanyao: 57% -> 43%

2021-03-04 5 -> 7 709.90 -> 698.95

Haru Shanten 2019: 29% -> 14%

2021-02-25 5 709.31 -> 709.90

Riichi Open Bratislava 2019: 57% -> 43%

2021-02-20 6 -> 5 701.22 -> 709.31

Tri Nitro Tournament 2019 - 7th Detonation: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 1000 2020-03-08 1/40 86% 2.90 EMA Big open chiitoitsu in a small tenpai
2 871 2020-01-26 5/32 71% 2.70 RR The last chance: back to 2019
3 162 2019-12-15 94/112 57% 4.05 EMA VIII Russian Riichi Championship
4 810 2019-11-24 13/64 57% 3.45 EMA Saint Petersburg Open 2019
5 73 2019-10-20 52/56 57% 3.03 EMA Tri Nitro Tournament 2019 - 7th Detonation
6 481 2019-09-08 15/28 43% 2.60 RR And yet the sinner collects tanyao
7 630 2019-08-25 11/28 43% 2.30 EMA Riichi Open Bratislava 2019
8 143 2019-07-21 31/36 29% 3.20 RR Moscow Open Riichi Marathon 2019
9 872 2019-06-02 6/40 14% 2.90 RR Summer Cup 2019
10 964 2019-05-04 4/84 14% 4.20 EMA Haru Shanten 2019
11 826 2019-03-09 5/24 0% 2.50 RR Toi-Toi-man Tournament
12 526 2019-02-10 10/20 0% 2.10 RR Fuyu Shanten 2019
13 604 2018-11-18 37/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
14 481 2018-07-15 15/28 0% 3.00 RR Moscow Open Riichi Marathon
15 42 2018-06-11 69/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
16 380 2018-05-01 45/72 0% 3.85 EMA Haru Shanten 2018
17 222 2018-02-17 22/28 0% 1.70 RR Fuyu Shanten
18 789 2017-12-24 5/20 0% 2.10 EMA Tyumen Riichi Open 2017
19 423 2017-11-12 42/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
20 677 2017-06-03 11/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017
21 452 2017-04-16 18/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017
22 1000 2017-03-25 1/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
23 714 2017-01-05 11/36 0% 2.50 RR Quick discard 2017
24 516 2016-05-03 16/32 0% 2.40 RR Siberia Cup 2016