Kozlovskaya Yana

From Saint Petersburg, Russia

EMA: 15020050

Player page

Common russian riichi rating (CRR)

Rating date Aug. 3, 2025 (latest changes Aug. 3, 2025).

202 place (239.30).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35

p1 = (401.87 * 4 * 0.14 + 500 * 2.10 * 0.57 + 379.75 * 3.65 * 1 + 189.47 * 3.85 * 1 + 0) / (4 * 0.14 + 2.10 * 0.57 + 3.65 * 1 + 3.85 * 1 + 1) = 286.7369449955898

p2 = (379.75 * 3.65 * 1 + 189.47 * 3.85 * 1 + 500 * 2.10 * 0.57 + 401.87 * 4 * 0.14) / max_coefficients = 191.87166123778505

score = 286.7369449955898 * 0.5 + 191.87166123778505 * 0.5 = 239.30430311668744

Rating changes

Show

all results
Date Place Points Reason
2025-08-03 196 -> 202 239.30
2025-07-30 192 -> 196 247.22 -> 239.30

Seihoku spring tournament 2024: 71% -> 57%
2025-07-26 190 -> 192 247.22
2025-07-14 191 -> 190 247.22
2025-07-13 189 -> 191 247.22
2025-07-12 190 -> 189 245.33 -> 247.22
2025-07-03 187 -> 190 255.47 -> 245.33

SPB Riichi Open 2023: 29% -> 14%
2025-06-27 188 -> 187 255.47
2025-06-15 178 -> 188 258.61 -> 255.47
2025-06-14 175 -> 178 258.61

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 189 2024-09-01 78/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
2 380 2024-08-04 50/80 100% 3.65 RR Riichi over Volga Samara
3 500 2024-03-30 24/47 57% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
4 402 2023-09-03 65/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
5 598 2023-06-11 36/88 0% 3.75 RR Money can not buy tenpai Perm
6 913 2022-12-18 🥉 3/24 0% 2.80 CRR Meeting in the billiard room Moscow
7 550 2022-06-12 51/112 0% 4.05 RR Moscow Riichi 2022 Moscow
8 687 2022-03-20 22/68 0% 3.50 RR Tenpai can't buy happiness Perm
9 277 2021-12-19 35/48 0% 3.10 RR Agari team tournament Moscow
10 907 2021-11-28 8/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
11 527 2021-11-06 27/56 0% 3.30 RR Kirov Tournament Kirov
12 1000 2020-03-08 🥇 1/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
13 158 2020-02-02 17/20 0% 2.40 CRR double-burning-2020 Moscow
14 871 2020-01-26 5/32 0% 2.70 RR The last chance: back to 2019 Moscow
15 162 2019-12-15 94/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
16 810 2019-11-24 13/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
17 73 2019-10-20 52/56 0% 3.03 EMA Tri Nitro Tournament 2019 - 7th Detonation Paris
18 481 2019-09-08 15/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
19 630 2019-08-25 11/28 0% 2.30 EMA Riichi Open Bratislava 2019 Bratislava
20 143 2019-07-21 31/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
21 872 2019-06-02 6/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
22 964 2019-05-04 4/84 0% 4.20 EMA Haru Shanten 2019 Perm
23 826 2019-03-09 5/24 0% 2.50 RR Toi-Toi-man Tournament Kirov
24 526 2019-02-10 10/20 0% 2.10 RR Fuyu Shanten 2019 Perm
25 604 2018-11-18 37/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
26 481 2018-07-15 15/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
27 42 2018-06-11 69/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
28 380 2018-05-01 45/72 0% 3.85 EMA Haru Shanten 2018 Perm
29 222 2018-02-17 22/28 0% 1.70 RR Fuyu Shanten Perm
30 789 2017-12-24 5/20 0% 2.10 EMA Tyumen Riichi Open 2017 Tyumen
31 423 2017-11-12 42/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
32 677 2017-06-03 11/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017 Perm
33 452 2017-04-16 18/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017 Chelyabinsk
34 1000 2017-03-25 🥇 1/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017 Perm
35 714 2017-01-05 11/36 0% 2.50 RR Quick discard 2017 Novosibirsk
36 516 2016-05-03 16/32 0% 2.40 RR Siberia Cup 2016 Novosibirsk