Kim Sofiya
From Novosibirsk, Russia
EMA: 15020096
Internal rating (RR)
Rating date March 15, 2026 (latest changes March 14, 2026).
51 place (560.14).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (196.26 * 4.60 * 0.14 + 680.85 * 2.80 * 0.29 + 658.23 * 3.65 * 0.43 + 694.74 * 3.85 * 0.43 + 967.74 * 2.40 * 0.86 + 805.97 * 4.10 * 1 + 532.47 * 3.45 * 1 + 193.55 * 3 * 1 + 257.14 * 2.50 * 1) / (4.60 * 0.14 + 2.80 * 0.29 + 3.65 * 0.43 + 3.85 * 0.43 + 2.40 * 0.86 + 4.10 * 1 + 3.45 * 1 + 3 * 1 + 2.50 * 1) = 566.537774712774
p2 = (805.97 * 4.10 * 1 + 967.74 * 2.40 * 0.86 + 532.47 * 3.45 * 1 + 694.74 * 3.85 * 0.43) / max_coefficients = 553.7498327759197
score = 566.537774712774 * 0.5 + 553.7498327759197 * 0.5 = 560.1438037443468
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-14 | 50 -> 51 | 561.28 -> 560.14 |
Guardian of the Winds: 43% -> 29% |
| 2026-03-12 | 52 -> 50 | 555.40 -> 561.28 |
X Russian Championship: 29% -> 14% |
| 2026-03-02 | 47 -> 52 | 569.83 -> 555.40 |
Riichi Maslenitsa (shrovetide): 100% -> 86% |
| 2026-03-01 | 45 -> 47 | 584.26 -> 569.83 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-23 | 39 -> 45 | 584.26 | |
| 2026-02-13 | 40 -> 39 | 584.26 | |
| 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 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 257 |
|
27/36 | 100% | 2.50 | RR | One tsumo until spring | Yekaterinburg | |
| 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 | 86% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg |
| 6 | 695 |
|
30/96 | 43% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 7 | 658 |
|
28/80 | 43% | 3.65 | RR | Riichi over Volga | Samara | |
| 8 | 681 |
|
16/48 | 29% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 9 | 196 |
|
87/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 10 | 234 |
|
83/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 11 | 218 |
|
69/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 12 | 91 |
|
61/67 | 0% | 3.45 | RR | Tenpai can't buy happiness | Perm | |
| 13 | 211 |
|
16/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 14 | 794 |
|
14/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 15 | 880 |
|
11/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 16 | 109 |
|
50/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | |
| 17 | 143 |
|
79/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 18 | 174 |
|
20/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | |
| 19 | 1000 |
|
🥇 | 1/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk |
| 20 | 371 |
|
23/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 21 | 907 |
|
5/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 22 | 714 |
|
11/36 | 0% | 1.70 | RR | Seventh winter tournament | Novosibirsk |