Kozlovskaya Yana

From Saint Petersburg, Russia

EMA: 15020050

Player page

Internal rating (RR)

Rating date April 12, 2024 (latest changes April 12, 2024).

39 place (425.85).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988

p1 = (549.55 * 4.05 * 0.14 + 597.70 * 3.75 * 1 + 401.87 * 4 * 1 + 500 * 2.10 * 1 + 0) / (4.05 * 0.14 + 3.75 * 1 + 4 * 1 + 2.10 * 1 + 1) = 456.4726923209854

p2 = (597.70 * 3.75 * 1 + 401.87 * 4 * 1 + 500 * 2.10 * 1 + 549.55 * 4.05 * 0.14) / max_coefficients = 395.22404749134085

score = 456.4726923209854 * 0.5 + 395.22404749134085 * 0.5 = 425.84836990616316

Rating changes

Show

all results
Date Place Points Reason
2024-04-12 38 -> 39 440.13 -> 425.85

Moscow Riichi 2022: 29% -> 14%
2024-03-30 53 -> 38 375.47 -> 440.13

Seihoku spring tournament 2024: 0% -> 100%
2024-03-20 49 -> 53 414.85 -> 375.47

Tenpai can't buy happiness: 14% -> 0%
2024-03-10 38 -> 49 445.46 -> 414.85
2024-03-06 41 -> 38 434.70 -> 445.46
2024-02-12 38 -> 41 440.29 -> 434.70

Moscow Riichi 2022: 43% -> 29%
2024-01-20 34 -> 38 458.78 -> 440.29

Tenpai can't buy happiness: 29% -> 14%
2024-01-06 36 -> 34 448.71 -> 458.78
2023-12-19 35 -> 36 466.49 -> 448.71

Agari team tournament: 14% -> 0%
2023-12-12 32 -> 35 470.15 -> 466.49

Moscow Riichi 2022: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 500 2024-03-30 24/47 100% 2.10 RR Seihoku spring tournament 2024
2 402 2023-09-03 65/108 100% 4.00 RR SPB Riichi Open 2023
3 598 2023-06-11 36/88 100% 3.75 RR Money can not buy tenpai
4 550 2022-06-12 51/112 14% 4.05 RR Moscow Riichi 2022
5 687 2022-03-20 22/68 0% 3.50 RR Tenpai can't buy happiness
6 277 2021-12-19 35/48 0% 3.10 RR Agari team tournament
7 907 2021-11-28 8/76 0% 3.45 RR Saint Petersburg Open 2021
8 527 2021-11-06 27/56 0% 3.30 RR Kirov Tournament
9 1000 2020-03-08 1/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai
10 871 2020-01-26 5/32 0% 2.70 RR The last chance: back to 2019
11 162 2019-12-15 94/112 0% 4.05 EMA VIII Russian Riichi Championship
12 810 2019-11-24 13/64 0% 3.45 EMA Saint Petersburg Open 2019
13 73 2019-10-20 52/56 0% 3.03 EMA Tri Nitro Tournament 2019 - 7th Detonation
14 481 2019-09-08 15/28 0% 2.60 RR And yet the sinner collects tanyao
15 630 2019-08-25 11/28 0% 2.30 EMA Riichi Open Bratislava 2019
16 143 2019-07-21 31/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
17 872 2019-06-02 6/40 0% 2.90 RR Summer Cup 2019
18 964 2019-05-04 4/84 0% 4.20 EMA Haru Shanten 2019
19 826 2019-03-09 5/24 0% 2.50 RR Toi-Toi-man Tournament
20 526 2019-02-10 10/20 0% 2.10 RR Fuyu Shanten 2019
21 604 2018-11-18 37/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
22 481 2018-07-15 15/28 0% 3.00 RR Moscow Open Riichi Marathon
23 42 2018-06-11 69/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
24 380 2018-05-01 45/72 0% 3.85 EMA Haru Shanten 2018
25 222 2018-02-17 22/28 0% 1.70 RR Fuyu Shanten
26 789 2017-12-24 5/20 0% 2.10 EMA Tyumen Riichi Open 2017
27 423 2017-11-12 42/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
28 677 2017-06-03 11/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017
29 452 2017-04-16 18/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017
30 1000 2017-03-25 1/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
31 714 2017-01-05 11/36 0% 2.50 RR Quick discard 2017
32 516 2016-05-03 16/32 0% 2.40 RR Siberia Cup 2016