Chichigin Andrey
From Odintsovo, Russia
EMA: 15990028
Internal rating (RR)
Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).
90 place (180.87).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001
p1 = (810.81 * 4.05 * 0.43 + 40 * 4.20 * 0.71 + 140.19 * 4 * 1 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.71 + 4 * 1 + 1 + 1) = 194.50460092269947
p2 = (810.81 * 4.05 * 0.43 + 140.19 * 4 * 1 + 40 * 4.20 * 0.71) / max_coefficients = 167.2431841062191
score = 194.50460092269947 * 0.5 + 167.2431841062191 * 0.5 = 180.87389251445927
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2024-01-06 | 93 -> 90 | 173.87 -> 180.87 | 
                        
                             IX Russian Riichi Championship: 86% -> 71%  | 
                
| 2023-12-19 | 96 -> 93 | 185.86 -> 173.87 | 
                        
                             Agari team tournament: 14% -> 0%  | 
                
| 2023-12-12 | 93 -> 96 | 214.92 -> 185.86 | 
                        
                             Moscow Riichi 2022: 57% -> 43%  | 
                
| 2023-11-28 | 100 -> 93 | 214.92 | |
| 2023-11-20 | 102 -> 100 | 214.92 | |
| 2023-11-06 | 105 -> 102 | 206.77 -> 214.92 | 
                        
                             IX Russian Riichi Championship: 100% -> 86%  | 
                
| 2023-10-20 | 106 -> 105 | 206.77 | |
| 2023-10-19 | 105 -> 106 | 209.15 -> 206.77 | 
                        
                             Agari team tournament: 29% -> 14%  | 
                
| 2023-10-13 | 106 -> 105 | 209.15 | |
| 2023-10-12 | 103 -> 106 | 234.25 -> 209.15 | 
                        
                             Moscow Riichi 2022: 71% -> 57%  | 
                
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 140 | 
                     | 
                93/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 2 | 40 | 
                     | 
                73/76 | 71% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 3 | 811 | 
                     | 
                22/112 | 43% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 4 | 191 | 
                     | 
                39/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 5 | 452 | 
                     | 
                18/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | |
| 6 | 198 | 
                     | 
                90/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 7 | 683 | 
                     | 
                21/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow |