Kozlovskaya Yana

From Saint Petersburg, Russia

EMA: 15020050

Player page

Internal rating (RR)

Rating date March 31, 2023 (latest changes March 30, 2023).

16 place (607.37).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.10 * 0.71) = 13.46418

p1 = (629.63 * 2.30 * 0.14 + 481.48 * 2.60 * 0.14 + 72.73 * 3.03 * 0.29 + 809.52 * 3.45 * 0.29 + 162.16 * 4.05 * 0.29 + 870.97 * 2.70 * 0.43 + 1000 * 2.90 * 0.57 + 527.27 * 3.30 * 0.57 + 906.67 * 3.45 * 0.57 + 686.57 * 3.50 * 0.86 + 549.55 * 4.05 * 1) / (2.30 * 0.14 + 2.60 * 0.14 + 3.03 * 0.29 + 3.45 * 0.29 + 4.05 * 0.29 + 2.70 * 0.43 + 2.90 * 0.57 + 3.30 * 0.57 + 3.45 * 0.57 + 3.50 * 0.86 + 4.05 * 1) = 640.6399968421737

p2 = (549.55 * 4.05 * 1 + 686.57 * 3.50 * 0.86 + 906.67 * 3.45 * 0.57 + 1000 * 2.90 * 0.57) / max_coefficients = 574.0921467181811

score = 640.6399968421737 * 0.5 + 574.0921467181811 * 0.5 = 607.3660717801774

Rating changes

Show

all results
Date Place Points Reason
2023-03-30 21 -> 16 605.29 -> 607.37

The last chance: back to 2019: 57% -> 43%

Moscow Open Riichi Marathon 2019: 14% -> 0%

VIII Russian Riichi Championship: 43% -> 29%

Saint Petersburg Open 2019: 43% -> 29%
2023-03-28 20 -> 21 619.71 -> 605.29

Saint Petersburg Open 2021: 71% -> 57%
2023-03-20 19 -> 20 621.83 -> 619.71

Tenpai can't buy happiness: 100% -> 86%
2023-03-06 22 -> 19 615.15 -> 621.83

Kirov Tournament: 71% -> 57%
2023-02-28 21 -> 22 626.56 -> 615.15

Big open chiitoitsu in a small tenpai: 71% -> 57%

Riichi Open Bratislava 2019: 29% -> 14%

Tri Nitro Tournament 2019 - 7th Detonation: 43% -> 29%

And yet the sinner collects tanyao: 29% -> 14%
2023-02-19 21 621.64 -> 626.56

Agari team tournament: 86% -> 71%
2023-01-30 22 -> 21 618.54 -> 621.64

Moscow Open Riichi Marathon 2019: 29% -> 14%

The last chance: back to 2019: 71% -> 57%

Summer Cup 2019: 14% -> 0%

VIII Russian Riichi Championship: 57% -> 43%

Saint Petersburg Open 2019: 57% -> 43%
2023-01-28 19 -> 22 632.27 -> 618.54

Saint Petersburg Open 2021: 86% -> 71%
2023-01-06 22 -> 19 631.36 -> 632.27

Kirov Tournament: 86% -> 71%
2022-12-30 20 -> 22 642.99 -> 631.36

And yet the sinner collects tanyao: 43% -> 29%

Tri Nitro Tournament 2019 - 7th Detonation: 57% -> 43%

Haru Shanten 2019: 14% -> 0%

Riichi Open Bratislava 2019: 43% -> 29%

Big open chiitoitsu in a small tenpai: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 550 2022-06-12 51/112 100% 4.05 RR Moscow Riichi 2022
2 687 2022-03-20 22/68 86% 3.50 RR Tenpai can't buy happiness
3 277 2021-12-19 35/48 71% 3.10 RR Agari team tournament
4 907 2021-11-28 8/76 57% 3.45 RR Saint Petersburg Open 2021
5 527 2021-11-06 27/56 57% 3.30 RR Kirov Tournament
6 1000 2020-03-08 1/40 57% 2.90 EMA Big open chiitoitsu in a small tenpai
7 871 2020-01-26 5/32 43% 2.70 RR The last chance: back to 2019
8 162 2019-12-15 94/112 29% 4.05 EMA VIII Russian Riichi Championship
9 810 2019-11-24 13/64 29% 3.45 EMA Saint Petersburg Open 2019
10 73 2019-10-20 52/56 29% 3.03 EMA Tri Nitro Tournament 2019 - 7th Detonation
11 481 2019-09-08 15/28 14% 2.60 RR And yet the sinner collects tanyao
12 630 2019-08-25 11/28 14% 2.30 EMA Riichi Open Bratislava 2019
13 143 2019-07-21 31/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
14 872 2019-06-02 6/40 0% 2.90 RR Summer Cup 2019
15 964 2019-05-04 4/84 0% 4.20 EMA Haru Shanten 2019
16 826 2019-03-09 5/24 0% 2.50 RR Toi-Toi-man Tournament
17 526 2019-02-10 10/20 0% 2.10 RR Fuyu Shanten 2019
18 604 2018-11-18 37/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
19 481 2018-07-15 15/28 0% 3.00 RR Moscow Open Riichi Marathon
20 42 2018-06-11 69/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
21 380 2018-05-01 45/72 0% 3.85 EMA Haru Shanten 2018
22 222 2018-02-17 22/28 0% 1.70 RR Fuyu Shanten
23 789 2017-12-24 5/20 0% 2.10 EMA Tyumen Riichi Open 2017
24 423 2017-11-12 42/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
25 677 2017-06-03 11/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017
26 452 2017-04-16 18/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017
27 1000 2017-03-25 1/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
28 714 2017-01-05 11/36 0% 2.50 RR Quick discard 2017
29 516 2016-05-03 16/32 0% 2.40 RR Siberia Cup 2016