Kim Sofiya

From Novosibirsk, Russia

EMA: 15020096

Player page

Internal rating (RR)

Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).

40 place (584.26).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (196.26 * 4.60 * 0.29 + 680.85 * 2.80 * 0.43 + 658.23 * 3.65 * 0.43 + 694.74 * 3.85 * 0.57 + 967.74 * 2.40 * 1 + 805.97 * 4.10 * 1 + 532.47 * 3.45 * 1 + 193.55 * 3 * 1 + 257.14 * 2.50 * 1) / (4.60 * 0.29 + 2.80 * 0.43 + 3.65 * 0.43 + 3.85 * 0.57 + 2.40 * 1 + 4.10 * 1 + 3.45 * 1 + 3 * 1 + 2.50 * 1) = 567.0255488393627

p2 = (805.97 * 4.10 * 1 + 967.74 * 2.40 * 1 + 532.47 * 3.45 * 1 + 694.74 * 3.85 * 0.57) / max_coefficients = 601.4989966555185

score = 567.0255488393627 * 0.5 + 601.4989966555185 * 0.5 = 584.2622727474406

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 37 -> 40 604.41 -> 584.26

One tsumo until spring: 0% -> 100%
2026-02-04 36 -> 37 605.08 -> 604.41

Riichi over Volga: 57% -> 43%
2026-02-02 38 -> 36 605.08
2026-01-25 36 -> 38 605.08
2026-01-14 36 605.79 -> 605.08

Guardian of the Winds: 57% -> 43%
2026-01-12 39 -> 36 599.26 -> 605.79

X Russian Championship: 43% -> 29%
2026-01-07 36 -> 39 599.26
2026-01-01 36 613.30 -> 599.26

SPB Riichi Open 2024: 71% -> 57%
2025-12-13 37 -> 36 613.30
2025-12-09 38 -> 37 613.30

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 257 2026-02-08 27/36 100% 2.50 RR One tsumo until spring Yekaterinburg
2 194 2025-11-30 26/32 100% 3.00 RR Final Cup 2025 Moscow
3 532 2025-08-31 37/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 806 2025-06-15 14/68 100% 4.10 RR 13 bloody tiles Perm
5 968 2025-03-02 🥈 2/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
6 695 2024-09-01 30/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 658 2024-08-04 28/80 43% 3.65 RR Riichi over Volga Samara
8 681 2024-07-14 16/48 43% 2.80 RR Guardian of the Winds Yekaterinburg
9 196 2024-05-12 87/108 29% 4.60 RR X Russian Championship Perm
10 234 2023-09-03 83/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 218 2023-06-11 69/88 0% 3.75 RR Money can not buy tenpai Perm
12 104 2022-03-20 61/68 0% 3.50 RR Tenpai can't buy happiness Perm
13 211 2020-01-05 16/20 0% 2.10 EMA Snow Dragon Tournament Novosibirsk
14 794 2019-11-04 14/64 0% 3.85 EMA Aki Shanten 2019 Perm
15 880 2019-05-04 11/84 0% 4.20 EMA Haru Shanten 2019 Perm
16 109 2019-01-05 50/56 0% 3.00 EMA Snow Dragon Novosibirsk
17 143 2018-11-18 79/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
18 174 2018-08-12 20/24 0% 2.20 RR Siberian riichi Novosibirsk
19 1000 2018-01-05 🥇 1/32 0% 2.20 RR Russian riichi championship by JPML-B rules Novosibirsk
20 371 2017-01-05 23/36 0% 2.50 RR Quick discard 2017 Novosibirsk
21 907 2016-01-05 5/44 0% 1.90 RR Eighth winter tournament Novosibirsk
22 714 2015-01-07 11/36 0% 1.70 RR Seventh winter tournament Novosibirsk