Kim Sofiya

From Novosibirsk, Russia

EMA: 15020096

Player page

Internal rating (RR)

Rating date July 21, 2026 (latest changes July 18, 2026).

62 place (549.99).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (658.23 * 3.65 * 0.14 + 694.74 * 3.85 * 0.14 + 967.74 * 2.40 * 0.57 + 805.97 * 4.10 * 0.86 + 532.47 * 3.45 * 1 + 193.55 * 3 * 1 + 257.14 * 2.50 * 1 + 538.46 * 4.71 * 1 + 612.90 * 2.40 * 1) / (3.65 * 0.14 + 3.85 * 0.14 + 2.40 * 0.57 + 4.10 * 0.86 + 3.45 * 1 + 3 * 1 + 2.50 * 1 + 4.71 * 1 + 2.40 * 1) = 542.8737143018056

p2 = (805.97 * 4.10 * 0.86 + 538.46 * 4.71 * 1 + 532.47 * 3.45 * 1 + 612.90 * 2.40 * 1) / max_coefficients = 557.1040656576845

score = 542.8737143018056 * 0.5 + 557.1040656576845 * 0.5 = 549.9888899797451

Rating changes

Show

all results
Date Place Points Reason
2026-07-14 55 -> 62 578.40 -> 549.99

Guardian of the Winds: 14% -> 0%
2026-07-13 56 -> 55 578.40
2026-07-12 61 -> 56 542.55 -> 578.40

Poplar fluff. Mahjong. July.: 0% -> 100%
2026-07-02 58 -> 61 556.83 -> 542.55

Riichi Maslenitsa (shrovetide): 71% -> 57%
2026-07-01 57 -> 58 558.81 -> 556.83

SPB Riichi Open 2024: 29% -> 14%
2026-06-15 55 -> 57 566.61 -> 558.81

13 bloody tiles: 100% -> 86%
2026-06-14 56 -> 55 534.82 -> 566.61

XII Russian Championship: 0% -> 100%
2026-06-13 58 -> 56 534.82
2026-06-09 59 -> 58 534.82
2026-06-04 59 536.29 -> 534.82

Riichi over Volga: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 613 2026-07-12 13/32 100% 2.40 RR Poplar fluff. Mahjong. July. Yekaterinburg
2 538 2026-06-14 67/144 100% 4.71 RR XII Russian Championship Samara
3 257 2026-02-08 27/36 100% 2.50 RR One tsumo until spring Yekaterinburg
4 194 2025-11-30 26/32 100% 3.00 RR Final Cup 2025 Moscow
5 532 2025-08-31 37/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
6 806 2025-06-15 14/68 86% 4.10 RR 13 bloody tiles Perm
7 968 2025-03-02 🥈 2/32 57% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
8 695 2024-09-01 30/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
9 658 2024-08-04 28/80 14% 3.65 RR Riichi over Volga Samara
10 681 2024-07-14 16/48 0% 2.80 RR Guardian of the Winds Yekaterinburg
11 196 2024-05-12 87/108 0% 4.60 RR X Russian Championship Perm
12 234 2023-09-03 83/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
13 218 2023-06-11 69/88 0% 3.75 RR Money can not buy tenpai Perm
14 91 2022-03-20 61/67 0% 3.45 RR Tenpai can't buy happiness Perm
15 211 2020-01-05 16/20 0% 2.10 EMA Snow Dragon Tournament Novosibirsk
16 794 2019-11-04 14/64 0% 3.85 EMA Aki Shanten 2019 Perm
17 880 2019-05-04 11/84 0% 4.20 EMA Haru Shanten 2019 Perm
18 109 2019-01-05 50/56 0% 3.00 EMA Snow Dragon Novosibirsk
19 143 2018-11-18 79/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
20 174 2018-08-12 20/24 0% 2.20 RR Siberian riichi Novosibirsk
21 1000 2018-01-05 🥇 1/32 0% 2.20 RR Russian riichi championship by JPML-B rules Novosibirsk
22 371 2017-01-05 23/36 0% 2.50 RR Quick discard 2017 Novosibirsk
23 907 2016-01-05 5/44 0% 1.90 RR Eighth winter tournament Novosibirsk
24 714 2015-01-07 11/36 0% 1.70 RR Seventh winter tournament Novosibirsk