Kozlovskaya Yana

From Saint Petersburg, Russia

EMA: 15020050

Player page

Internal rating (RR)

Rating date Dec. 27, 2024 (latest changes Dec. 11, 2024).

101 place (330.88).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (597.70 * 3.75 * 0.43 + 401.87 * 4 * 0.71 + 500 * 2.10 * 1 + 379.75 * 3.65 * 1 + 189.47 * 3.85 * 1) / (3.75 * 0.43 + 4 * 0.71 + 2.10 * 1 + 3.65 * 1 + 3.85 * 1) = 375.01857520201645

p2 = (379.75 * 3.65 * 1 + 401.87 * 4 * 0.71 + 500 * 2.10 * 1 + 597.70 * 3.75 * 0.43) / max_coefficients = 286.74826498422715

score = 375.01857520201645 * 0.5 + 286.74826498422715 * 0.5 = 330.8834200931218

Rating changes

Show

all results
Date Place Points Reason
2024-12-11 98 -> 101 345.06 -> 330.88

Money can not buy tenpai: 57% -> 43%
2024-11-06 102 -> 98 345.06
2024-11-03 103 -> 102 352.66 -> 345.06

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 91 -> 103 355.98 -> 352.66
2024-10-11 85 -> 91 369.95 -> 355.98

Money can not buy tenpai: 71% -> 57%
2024-09-06 87 -> 85 369.95
2024-09-03 86 -> 87 371.08 -> 369.95

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 71 -> 86 394.63 -> 371.08

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 70 -> 71 406.42 -> 394.63

Money can not buy tenpai: 86% -> 71%
2024-08-04 81 -> 70 356.35 -> 406.42

Riichi over Volga: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 189 2024-09-01 78/96 100% 3.85 RR SPB Riichi Open 2024
2 380 2024-08-04 50/80 100% 3.65 RR Riichi over Volga
3 500 2024-03-30 24/47 100% 2.10 RR Seihoku spring tournament 2024
4 402 2023-09-03 65/108 71% 4.00 RR SPB Riichi Open 2023
5 598 2023-06-11 36/88 43% 3.75 RR Money can not buy tenpai
6 550 2022-06-12 51/112 0% 4.05 RR Moscow Riichi 2022
7 687 2022-03-20 22/68 0% 3.50 RR Tenpai can't buy happiness
8 277 2021-12-19 35/48 0% 3.10 RR Agari team tournament
9 907 2021-11-28 8/76 0% 3.45 RR Saint Petersburg Open 2021
10 527 2021-11-06 27/56 0% 3.30 RR Kirov Tournament
11 1000 2020-03-08 1/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai
12 871 2020-01-26 5/32 0% 2.70 RR The last chance: back to 2019
13 162 2019-12-15 94/112 0% 4.05 EMA VIII Russian Riichi Championship
14 810 2019-11-24 13/64 0% 3.45 EMA Saint Petersburg Open 2019
15 73 2019-10-20 52/56 0% 3.03 EMA Tri Nitro Tournament 2019 - 7th Detonation
16 481 2019-09-08 15/28 0% 2.60 RR And yet the sinner collects tanyao
17 630 2019-08-25 11/28 0% 2.30 EMA Riichi Open Bratislava 2019
18 143 2019-07-21 31/36 0% 3.20 RR Moscow Open Riichi Marathon 2019
19 872 2019-06-02 6/40 0% 2.90 RR Summer Cup 2019
20 964 2019-05-04 4/84 0% 4.20 EMA Haru Shanten 2019
21 826 2019-03-09 5/24 0% 2.50 RR Toi-Toi-man Tournament
22 526 2019-02-10 10/20 0% 2.10 RR Fuyu Shanten 2019
23 604 2018-11-18 37/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
24 481 2018-07-15 15/28 0% 3.00 RR Moscow Open Riichi Marathon
25 42 2018-06-11 69/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
26 380 2018-05-01 45/72 0% 3.85 EMA Haru Shanten 2018
27 222 2018-02-17 22/28 0% 1.70 RR Fuyu Shanten
28 789 2017-12-24 5/20 0% 2.10 EMA Tyumen Riichi Open 2017
29 423 2017-11-12 42/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
30 677 2017-06-03 11/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017
31 452 2017-04-16 18/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017
32 1000 2017-03-25 1/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
33 714 2017-01-05 11/36 0% 2.50 RR Quick discard 2017
34 516 2016-05-03 16/32 0% 2.40 RR Siberia Cup 2016