Chernykh Svetlana
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date July 3, 2025 (latest changes July 3, 2025).
57 place (558.97).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (1000 * 2.10 * 0.14 + 481.48 * 2.30 * 0.43 + 740.74 * 2.30 * 0.57 + 205.61 * 4.60 * 0.86 + 872.34 * 2.80 * 1 + 741.94 * 2.40 * 1 + 686.57 * 4.10 * 1) / (2.10 * 0.14 + 2.30 * 0.43 + 2.30 * 0.57 + 4.60 * 0.86 + 2.80 * 1 + 2.40 * 1 + 4.10 * 1) = 605.7654132016222
p2 = (686.57 * 4.10 * 1 + 872.34 * 2.80 * 1 + 741.94 * 2.40 * 1 + 740.74 * 2.30 * 0.57) / max_coefficients = 512.1654501216544
score = 605.7654132016222 * 0.5 + 512.1654501216544 * 0.5 = 558.9654316616384
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2025-07-03 | 58 -> 57 | 558.97 | |
| 2025-06-27 | 58 | 562.63 -> 558.97 | 
                        
                             13 tiles until tempai: 29% -> 14%  | 
                
| 2025-06-25 | 56 -> 58 | 571.68 -> 562.63 | 
                        
                             Chasing Kan: 71% -> 57%  | 
                
| 2025-06-15 | 70 -> 56 | 501.78 -> 571.68 | 
                        
                             13 bloody tiles: 0% -> 100%  | 
                
| 2025-06-14 | 69 -> 70 | 501.78 | |
| 2025-06-11 | 70 -> 69 | 501.18 -> 501.78 | 
                        
                             Money can not buy tenpai: 14% -> 0%  | 
                
| 2025-06-09 | 71 -> 70 | 501.18 | |
| 2025-06-08 | 70 -> 71 | 501.18 | |
| 2025-05-30 | 71 -> 70 | 501.18 | |
| 2025-05-12 | 74 -> 71 | 487.58 -> 501.18 | 
                        
                             X Russian Championship: 100% -> 86%  | 
                
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 687 | 
                     | 
                22/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 2 | 742 | 
                     | 
                9/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 3 | 872 | 
                     | 
                7/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 4 | 206 | 
                     | 
                86/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 741 | 
                     | 
                8/28 | 57% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
| 6 | 481 | 
                     | 
                15/28 | 43% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
| 7 | 1000 | 
                     | 
                🥇 | 1/20 | 14% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg | 
| 8 | 563 | 
                     | 
                39/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 9 | 1000 | 
                     | 
                🥇 | 1/20 | 0% | 2.10 | RR | Spring hope | Yekaterinburg | 
| 10 | 696 | 
                     | 
                8/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 | Yekaterinburg | |
| 11 | 913 | 
                     | 
                🥉 | 3/24 | 0% | 2.20 | RR | The first tournament of 2017 | Yekaterinburg | 
| 12 | 348 | 
                     | 
                16/24 | 0% | 1.80 | RR | 4 riichi mahjong tournament 2015 | Yekaterinburg | |
| 13 | 200 | 
                     | 
                13/16 | 0% | 1.60 | RR | 3 riichi mahjong tournament 2015 | Yekaterinburg | |
| 14 | 600 | 
                     | 
                7/16 | 0% | 1.60 | RR | 2 autumn riichi mahjong tournament 2015 | Yekaterinburg | |
| 15 | 444 | 
                     | 
                16/28 | 0% | 1.90 | RR | 2 winter riichi mahjong tournament 2015 | Yekaterinburg | |
| 16 | 263 | 
                     | 
                15/20 | 0% | 1.30 | RR | Autumn riichi mahjong tournament 2014 | Yekaterinburg |