Kim Sofiya

From Novosibirsk, Russia

EMA: 15020096

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Common russian riichi rating (CRR)

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

32 place (663.48).

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

p1 = (466.67 * 1.60 * 0.57 + 196.26 * 4.60 * 0.71 + 680.85 * 2.80 * 0.86 + 658.23 * 3.65 * 0.86 + 694.74 * 3.85 * 0.86 + 869.57 * 2.20 * 1 + 967.74 * 2.40 * 1 + 805.97 * 4.10 * 1 + 532.47 * 3.45 * 1) / (1.60 * 0.57 + 4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 3.85 * 0.86 + 2.20 * 1 + 2.40 * 1 + 4.10 * 1 + 3.45 * 1) = 652.7215065443648

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 = 652.7215065443648 * 0.5 + 674.2425675675676 * 0.5 = 663.4820370559662

Rating changes

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all results
Date Place Points Reason
2025-09-05 33 -> 32 662.64 -> 663.48

Akademgorodok: Riichi Mahjong Tournament 2024: 71% -> 57%
2025-09-03 26 -> 33 690.31 -> 662.64

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 25 -> 26 693.88 -> 690.31

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 29 -> 25 670.56 -> 693.88

SPB Riichi Open 2025: 0% -> 100%
2025-08-09 30 -> 29 670.56
2025-08-04 28 -> 30 678.40 -> 670.56

Riichi over Volga: 100% -> 86%
2025-08-03 25 -> 28 678.40
2025-07-14 25 678.58 -> 678.40

Guardian of the Winds: 100% -> 86%
2025-07-13 26 -> 25 678.58
2025-07-12 29 -> 26 665.88 -> 678.58

X Russian Championship: 86% -> 71%

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
4 870 2024-09-15 4/24 100% 2.20 CRR Tails, money, two renchans Tyumen
5 695 2024-09-01 30/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 658 2024-08-04 28/80 86% 3.65 RR Riichi over Volga Samara
7 681 2024-07-14 16/48 86% 2.80 RR Guardian of the Winds Yekaterinburg
8 196 2024-05-12 87/108 71% 4.60 RR X Russian Championship Perm
9 467 2024-05-05 9/16 57% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
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
18 105 2018-10-21 18/20 0% 1.30 CRR Awakening of the rising sun dragon Novosibirsk
19 174 2018-08-12 20/24 0% 2.20 RR Siberian riichi Novosibirsk
20 1000 2018-01-05 🥇 1/32 0% 2.20 RR Russian riichi championship by JPML-B rules Novosibirsk
21 371 2017-01-05 23/36 0% 2.50 RR Quick discard 2017 Novosibirsk
22 907 2016-01-05 5/44 0% 1.90 RR Eighth winter tournament Novosibirsk
23 714 2015-01-07 11/36 0% 1.70 RR Seventh winter tournament Novosibirsk