Korobeynikov Vladimir
Russian Champion 2019
From Moscow, Russia
EMA: 15990148
Internal rating (RR)
Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).
52 place (368.68).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001
p1 = (945.95 * 4.05 * 0.43 + 626.67 * 4.20 * 0.71 + 0 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.71 + 1 + 1 + 1) = 455.2856878781885
p2 = (626.67 * 4.20 * 0.71 + 945.95 * 4.05 * 0.43) / max_coefficients = 282.0816137255734
score = 455.2856878781885 * 0.5 + 282.0816137255734 * 0.5 = 368.68365080188096
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2024-01-06 | 51 -> 52 | 382.75 -> 368.68 | 
                        
                             IX Russian Riichi Championship: 86% -> 71%  | 
                
| 2023-12-19 | 52 -> 51 | 382.75 | |
| 2023-12-12 | 43 -> 52 | 411.98 -> 382.75 | 
                        
                             Moscow Riichi 2022: 57% -> 43%  | 
                
| 2023-11-28 | 44 -> 43 | 411.98 | |
| 2023-11-20 | 45 -> 44 | 411.98 | |
| 2023-11-06 | 45 | 422.36 -> 411.98 | 
                        
                             IX Russian Riichi Championship: 100% -> 86%  | 
                
| 2023-10-12 | 43 -> 45 | 446.80 -> 422.36 | 
                        
                             Moscow Riichi 2022: 71% -> 57%  | 
                
| 2023-09-20 | 44 -> 43 | 446.80 | |
| 2023-09-06 | 43 -> 44 | 446.80 | |
| 2023-09-03 | 31 -> 43 | 474.97 -> 446.80 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 627 | 
                     | 
                29/76 | 71% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 2 | 946 | 
                     | 
                7/112 | 43% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 3 | 935 | 
                     | 
                🥉 | 3/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | 
| 4 | 1000 | 
                     | 
                🥇 | 1/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | 
| 5 | 825 | 
                     | 
                12/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 | Saint Petersburg | |
| 6 | 574 | 
                     | 
                21/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 | Moscow | |
| 7 | 831 | 
                     | 
                15/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 | Saint Petersburg | |
| 8 | 889 | 
                     | 
                8/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 | Moscow | |
| 9 | 436 | 
                     | 
                23/40 | 0% | 2.00 | RR | Moscow championship 2017 (JPML-A rules) | Moscow | |
| 10 | 419 | 
                     | 
                26/44 | 0% | 2.50 | EMA | Moscow Riichi Championship 2015 | Moscow | |
| 11 | 960 | 
                     | 
                4/76 | 0% | 2.50 | RR | Moscow Riichi 2014 | Moscow | |
| 12 | 746 | 
                     | 
                19/72 | 0% | 3.25 | EMA | Russian Riichi Championship 2013 | Moscow | |
| 13 | 509 | 
                     | 
                28/56 | 0% | 3.00 | RR | "Japanese House" riichi mahjong cup 2013 | Moscow |