Kim Sofiya

From Novosibirsk, Russia

EMA: 15020096

Player page

Internal rating (RR)

Rating date Sept. 5, 2025 (latest changes Sept. 3, 2025).

32 place (656.53).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (196.26 * 4.60 * 0.71 + 680.85 * 2.80 * 0.86 + 658.23 * 3.65 * 0.86 + 694.74 * 3.85 * 0.86 + 967.74 * 2.40 * 1 + 805.97 * 4.10 * 1 + 532.47 * 3.45 * 1) / (4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 3.85 * 0.86 + 2.40 * 1 + 4.10 * 1 + 3.45 * 1) = 638.8092591023079

p2 = (805.97 * 4.10 * 1 + 967.74 * 2.40 * 1 + 694.74 * 3.85 * 0.86 + 658.23 * 3.65 * 0.86) / max_coefficients = 674.2425675675676

score = 638.8092591023079 * 0.5 + 674.2425675675676 * 0.5 = 656.5259133349377

Rating changes

Show

all results
Date Place Points Reason
2025-09-03 34 -> 32 651.41 -> 656.53

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 33 -> 34 655.90 -> 651.41

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 29 -> 33 664.43 -> 655.90

SPB Riichi Open 2025: 0% -> 100%
2025-08-09 30 -> 29 664.43
2025-08-04 28 -> 30 672.43 -> 664.43

Riichi over Volga: 100% -> 86%
2025-08-03 26 -> 28 672.43
2025-07-14 26 672.75 -> 672.43

Guardian of the Winds: 100% -> 86%
2025-07-13 27 -> 26 672.75
2025-07-12 29 -> 27 659.26 -> 672.75

X Russian Championship: 86% -> 71%
2025-07-03 30 -> 29 654.04 -> 659.26

SPB Riichi Open 2023: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 532 2025-08-31 37/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 806 2025-06-15 14/68 100% 4.10 RR 13 bloody tiles Perm
3 968 2025-03-02 🥈 2/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
4 695 2024-09-01 30/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 658 2024-08-04 28/80 86% 3.65 RR Riichi over Volga Samara
6 681 2024-07-14 16/48 86% 2.80 RR Guardian of the Winds Yekaterinburg
7 196 2024-05-12 87/108 71% 4.60 RR X Russian Championship Perm
8 234 2023-09-03 83/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 218 2023-06-11 69/88 0% 3.75 RR Money can not buy tenpai Perm
10 104 2022-03-20 61/68 0% 3.50 RR Tenpai can't buy happiness Perm
11 211 2020-01-05 16/20 0% 2.10 EMA Snow Dragon Tournament Novosibirsk
12 794 2019-11-04 14/64 0% 3.85 EMA Aki Shanten 2019 Perm
13 880 2019-05-04 11/84 0% 4.20 EMA Haru Shanten 2019 Perm
14 109 2019-01-05 50/56 0% 3.00 EMA Snow Dragon Novosibirsk
15 143 2018-11-18 79/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
16 174 2018-08-12 20/24 0% 2.20 RR Siberian riichi Novosibirsk
17 1000 2018-01-05 🥇 1/32 0% 2.20 RR Russian riichi championship by JPML-B rules Novosibirsk
18 371 2017-01-05 23/36 0% 2.50 RR Quick discard 2017 Novosibirsk
19 907 2016-01-05 5/44 0% 1.90 RR Eighth winter tournament Novosibirsk
20 714 2015-01-07 11/36 0% 1.70 RR Seventh winter tournament Novosibirsk