Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Common russian riichi rating (CRR)
Rating date Oct. 28, 2023 (latest changes Oct. 28, 2023).
163 place (142.67).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (709.09 * 3.30 * 0.14 + 978.72 * 3.10 * 0.14 + 144.14 * 4.05 * 0.57 + 0 + 0) / (3.30 * 0.14 + 3.10 * 0.14 + 4.05 * 0.57 + 1 + 1) = 210.6668349675734
p2 = (978.72 * 3.10 * 0.14 + 709.09 * 3.30 * 0.14 + 144.14 * 4.05 * 0.57) / max_coefficients = 74.6793220338983
score = 210.6668349675734 * 0.5 + 74.6793220338983 * 0.5 = 142.67307850073587
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2023-10-28 | 164 -> 163 | 142.67 | |
| 2023-10-27 | 163 -> 164 | 142.67 | |
| 2023-10-23 | 164 -> 163 | 142.67 | |
| 2023-10-22 | 161 -> 164 | 142.67 | |
| 2023-10-21 | 162 -> 161 | 142.67 | |
| 2023-10-19 | 141 -> 162 | 187.34 -> 142.67 | 
                        
                             Agari team tournament: 29% -> 14%  | 
                
| 2023-10-18 | 142 -> 141 | 187.34 | |
| 2023-10-17 | 141 -> 142 | 187.34 | |
| 2023-10-13 | 142 -> 141 | 187.34 | |
| 2023-10-12 | 143 -> 142 | 183.97 -> 187.34 | 
                        
                             Moscow Riichi 2022: 71% -> 57%  | 
                
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 144 | 
                     | 
                96/112 | 57% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 2 | 979 | 
                     | 
                🥈 | 2/48 | 14% | 3.10 | RR | Agari team tournament | Moscow | 
| 3 | 709 | 
                     | 
                17/56 | 14% | 3.30 | RR | Kirov Tournament | Kirov | |
| 4 | 0 | 
                     | 
                36/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 5 | 193 | 
                     | 
                68/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm |