Kravchenko Kirill
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Nov. 1, 2025 (latest changes Nov. 1, 2025).
2 place (795.41).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3
p1 = (672.90 * 4.60 * 0.57 + 659.57 * 2.80 * 0.71 + 443.04 * 3.65 * 0.71 + 730.34 * 3.75 * 0.86 + 761.90 * 2.60 * 1 + 528.57 * 3.50 * 1 + 970.15 * 4.10 * 1 + 790.70 * 3 * 1 + 987.01 * 3.45 * 1) / (4.60 * 0.57 + 2.80 * 0.71 + 3.65 * 0.71 + 3.75 * 0.86 + 2.60 * 1 + 3.50 * 1 + 4.10 * 1 + 3 * 1 + 3.45 * 1) = 744.513612646588
p2 = (970.15 * 4.10 * 1 + 987.01 * 3.45 * 1 + 790.70 * 3 * 1 + 730.34 * 3.75 * 0.86) / max_coefficients = 846.3132867132866
score = 744.513612646588 * 0.5 + 846.3132867132866 * 0.5 = 795.4134496799372
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2025-11-01 | 3 -> 2 | 793.94 -> 795.41 | |
| 2025-10-13 | 2 -> 3 | 794.20 -> 793.94 | 
                        
                             Moscow Riichi 2024: 100% -> 86%  | 
                
| 2025-10-04 | 4 -> 2 | 791.41 -> 794.20 | 
                        
                             Riichi over Volga: 86% -> 71%  | 
                
| 2025-09-26 | 3 -> 4 | 791.41 | |
| 2025-09-14 | 3 | 790.86 -> 791.41 | 
                        
                             Guardian of the Winds: 86% -> 71%  | 
                
| 2025-09-12 | 5 -> 3 | 790.13 -> 790.86 | 
                        
                             X Russian Championship: 71% -> 57%  | 
                
| 2025-09-03 | 3 -> 5 | 805.15 -> 790.13 | 
                        
                             SPB Riichi Open 2023: 14% -> 0%  | 
                
| 2025-09-01 | 4 -> 3 | 794.04 -> 805.15 | |
| 2025-08-31 | 13 -> 4 | 721.10 -> 794.04 | 
                        
                             SPB Riichi Open 2025: 0% -> 100%  | 
                
| 2025-08-22 | 12 -> 13 | 721.10 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 987 | 
                     | 
                🥈 | 2/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | 
| 2 | 791 | 
                     | 
                10/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 3 | 970 | 
                     | 
                🥉 | 3/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | 
| 4 | 529 | 
                     | 
                34/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 5 | 762 | 
                     | 
                11/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 6 | 730 | 
                     | 
                25/90 | 86% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 443 | 
                     | 
                45/80 | 71% | 3.65 | RR | Riichi over Volga | Samara | |
| 8 | 660 | 
                     | 
                17/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 9 | 673 | 
                     | 
                36/108 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 10 | 533 | 
                     | 
                51/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 11 | 529 | 
                     | 
                42/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |