Kosolapov Nikita
From Kirov, Russia
EMA: 15990426
Common russian riichi rating (CRR)
Rating date Nov. 2, 2023 (latest changes Nov. 2, 2023).
117 place (272.28).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (836.36 * 3.30 * 0.14 + 466.67 * 1.20 * 0.71 + 482.76 * 3.75 * 1 + 0 + 0) / (3.30 * 0.14 + 1.20 * 0.71 + 3.75 * 1 + 1 + 1) = 367.96854803050826
p2 = (482.76 * 3.75 * 1 + 466.67 * 1.20 * 0.71 + 836.36 * 3.30 * 0.14) / max_coefficients = 176.59322033898306
score = 367.96854803050826 * 0.5 + 176.59322033898306 * 0.5 = 272.2808841847457
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2023-10-28 | 118 -> 117 | 272.28 | |
| 2023-10-23 | 119 -> 118 | 272.28 | |
| 2023-10-22 | 116 -> 119 | 272.28 | |
| 2023-10-21 | 117 -> 116 | 272.28 | |
| 2023-10-20 | 115 -> 117 | 276.16 -> 272.28 | 
                        
                             I still can declare riichi: 86% -> 71%  | 
                
| 2023-10-19 | 116 -> 115 | 276.16 | |
| 2023-10-18 | 117 -> 116 | 276.16 | |
| 2023-10-17 | 116 -> 117 | 276.16 | |
| 2023-10-13 | 117 -> 116 | 276.16 | |
| 2023-10-12 | 116 -> 117 | 275.59 -> 276.16 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 483 | 
                     | 
                46/88 | 100% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 2 | 467 | 
                     | 
                9/16 | 71% | 1.20 | CRR | I still can declare riichi | Kirov | |
| 3 | 836 | 
                     | 
                10/56 | 14% | 3.30 | RR | Kirov Tournament | Kirov | |
| 4 | 821 | 
                     | 
                8/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai | Kirov | |
| 5 | 153 | 
                     | 
                95/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 6 | 825 | 
                     | 
                12/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 7 | 148 | 
                     | 
                24/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao | Kirov | |
| 8 | 200 | 
                     | 
                29/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 9 | 410 | 
                     | 
                50/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 10 | 783 | 
                     | 
                6/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament | Kirov | |
| 11 | 737 | 
                     | 
                6/20 | 0% | 2.10 | RR | Fuyu Shanten 2019 | Perm |