Kim Sofiya
From Novosibirsk, Russia
EMA: 15020096
Common russian riichi rating (CRR)
Rating date Jan. 31, 2026 (latest changes Jan. 30, 2026).
28 place (672.80).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (466.67 * 1.60 * 0.29 + 196.26 * 4.60 * 0.29 + 680.85 * 2.80 * 0.43 + 658.23 * 3.65 * 0.57 + 694.74 * 3.85 * 0.57 + 869.57 * 2.20 * 0.57 + 967.74 * 2.40 * 1 + 805.97 * 4.10 * 1 + 532.47 * 3.45 * 1 + 1000 * 1.90 * 1) / (1.60 * 0.29 + 4.60 * 0.29 + 2.80 * 0.43 + 3.65 * 0.57 + 3.85 * 0.57 + 2.20 * 0.57 + 2.40 * 1 + 4.10 * 1 + 3.45 * 1 + 1.90 * 1) = 719.242781378904
p2 = (805.97 * 4.10 * 1 + 967.74 * 2.40 * 1 + 1000 * 1.90 * 1 + 532.47 * 3.45 * 1) / max_coefficients = 626.3591973244147
score = 719.242781378904 * 0.5 + 626.3591973244147 * 0.5 = 672.8009893516594
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-25 | 24 -> 28 | 672.80 | |
| 2026-01-15 | 23 -> 24 | 673.94 -> 672.80 |
Tails, money, two renchans: 71% -> 57% |
| 2026-01-14 | 23 | 673.56 -> 673.94 |
Guardian of the Winds: 57% -> 43% |
| 2026-01-12 | 25 -> 23 | 665.63 -> 673.56 |
X Russian Championship: 43% -> 29% |
| 2026-01-07 | 27 -> 25 | 665.63 | |
| 2026-01-05 | 27 | 664.39 -> 665.63 |
Akademgorodok: Riichi Mahjong Tournament 2024: 43% -> 29% |
| 2026-01-03 | 33 -> 27 | 637.87 -> 664.39 |
Riichi in country home: 0% -> 100% |
| 2026-01-01 | 30 -> 33 | 650.92 -> 637.87 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 31 -> 30 | 650.92 | |
| 2025-12-04 | 30 -> 31 | 650.72 -> 650.92 |
Riichi over Volga: 71% -> 57% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1000 |
|
🥇 | 1/20 | 100% | 1.90 | CRR | Riichi in country home | Megion |
| 2 | 194 |
|
26/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 3 | 532 |
|
37/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 4 | 806 |
|
14/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 5 | 968 |
|
🥈 | 2/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg |
| 6 | 870 |
|
4/24 | 57% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
| 7 | 695 |
|
30/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 658 |
|
28/80 | 57% | 3.65 | RR | Riichi over Volga | Samara | |
| 9 | 681 |
|
16/48 | 43% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 10 | 196 |
|
87/108 | 29% | 4.60 | RR | X Russian Championship | Perm | |
| 11 | 467 |
|
9/16 | 29% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk | |
| 12 | 234 |
|
83/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 13 | 218 |
|
69/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 14 | 104 |
|
61/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 15 | 211 |
|
16/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 16 | 794 |
|
14/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 17 | 880 |
|
11/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 18 | 109 |
|
50/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | |
| 19 | 143 |
|
79/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 20 | 105 |
|
18/20 | 0% | 1.30 | CRR | Awakening of the rising sun dragon | Novosibirsk | |
| 21 | 174 |
|
20/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | |
| 22 | 1000 |
|
🥇 | 1/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk |
| 23 | 371 |
|
23/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 24 | 907 |
|
5/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 25 | 714 |
|
11/36 | 0% | 1.70 | RR | Seventh winter tournament | Novosibirsk |