Korobeynikov Vladimir
Russian Champion 2019
From Moscow, Russia
EMA: 15990148
Common russian riichi rating (CRR)
Rating date Dec. 11, 2024 (latest changes Dec. 11, 2024).
9 place (747.22).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (434.78 * 2.80 * 0.14 + 764.71 * 3.05 * 1 + 971.96 * 4.60 * 1 + 843.14 * 3.05 * 1 + 775.28 * 3.75 * 1 + 86.96 * 2.80 * 1) / (2.80 * 0.14 + 3.05 * 1 + 4.60 * 1 + 3.05 * 1 + 3.75 * 1 + 2.80 * 1) = 719.5248530888175
p2 = (971.96 * 4.60 * 1 + 775.28 * 3.75 * 1 + 843.14 * 3.05 * 1 + 764.71 * 3.05 * 1) / max_coefficients = 774.9053627760253
score = 719.5248530888175 * 0.5 + 774.9053627760253 * 0.5 = 747.2151079324215
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2024-12-01 | 1 -> 9 | 806.85 -> 747.22 | 
                        
                             Riichi never changing: 0% -> 100%  | 
                
| 2024-11-05 | 3 -> 1 | 802.73 -> 806.85 | |
| 2024-10-18 | 5 -> 3 | 797.74 -> 802.73 | 
                        
                             Meeting in the billiard room: 29% -> 14%  | 
                
| 2024-10-13 | 9 -> 5 | 731.28 -> 797.74 | 
                        
                             Moscow Riichi 2024: 0% -> 100%  | 
                
| 2024-09-06 | 9 | 738.47 -> 731.28 | 
                        
                             IX Russian Riichi Championship: 29% -> 14%  | 
                
| 2024-09-03 | 9 | 726.89 -> 738.47 | |
| 2024-09-01 | 6 -> 9 | 743.34 -> 726.89 | |
| 2024-08-18 | 6 | 737.38 -> 743.34 | 
                        
                             Meeting in the billiard room: 43% -> 29%  | 
                
| 2024-08-11 | 7 -> 6 | 733.87 -> 737.38 | |
| 2024-08-04 | 6 -> 7 | 747.09 -> 733.87 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 87 | 
                     | 
                22/24 | 100% | 2.80 | CRR | Riichi never changing | Moscow | |
| 2 | 775 | 
                     | 
                21/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 843 | 
                     | 
                9/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 4 | 972 | 
                     | 
                4/108 | 100% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 765 | 
                     | 
                13/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 435 | 
                     | 
                14/24 | 14% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 7 | 627 | 
                     | 
                29/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 8 | 946 | 
                     | 
                7/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 9 | 935 | 
                     | 
                🥉 | 3/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | 
| 10 | 1000 | 
                     | 
                🥇 | 1/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | 
| 11 | 825 | 
                     | 
                12/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 | Saint Petersburg | |
| 12 | 574 | 
                     | 
                21/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 | Moscow | |
| 13 | 963 | 
                     | 
                🥈 | 2/28 | 0% | 3.50 | CRR | A-League | Moscow | 
| 14 | 831 | 
                     | 
                15/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 | Saint Petersburg | |
| 15 | 889 | 
                     | 
                8/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 | Moscow | |
| 16 | 436 | 
                     | 
                23/40 | 0% | 2.00 | RR | Moscow championship 2017 (JPML-A rules) | Moscow | |
| 17 | 419 | 
                     | 
                26/44 | 0% | 2.50 | EMA | Moscow Riichi Championship 2015 | Moscow | |
| 18 | 960 | 
                     | 
                4/76 | 0% | 2.50 | RR | Moscow Riichi 2014 | Moscow | |
| 19 | 746 | 
                     | 
                19/72 | 0% | 3.25 | EMA | Russian Riichi Championship 2013 | Moscow | |
| 20 | 509 | 
                     | 
                28/56 | 0% | 3.00 | RR | "Japanese House" riichi mahjong cup 2013 | Moscow |