Goncharenko Alexandr
From Tyumen, Russia
EMA: 15020094
Internal rating (RR)
Rating date May 12, 2025 (latest changes May 12, 2025).
12 place (713.26).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (448.28 * 3.75 * 0.14 + 794.39 * 4 * 0.29 + 906.54 * 4.60 * 0.86 + 957.45 * 2.80 * 1 + 582.28 * 3.65 * 1 + 610.53 * 3.85 * 1 + 548.39 * 2.40 * 1) / (3.75 * 0.14 + 4 * 0.29 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 2.40 * 1) = 720.2024306634861
p2 = (906.54 * 4.60 * 0.86 + 957.45 * 2.80 * 1 + 610.53 * 3.85 * 1 + 582.28 * 3.65 * 1) / max_coefficients = 706.3206838038894
score = 720.2024306634861 * 0.5 + 706.3206838038894 * 0.5 = 713.2615572336878
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2025-05-12 | 11 -> 12 | 720.64 -> 713.26 | 
                        
                             X Russian Championship: 100% -> 86%  | 
                
| 2025-05-10 | 12 -> 11 | 720.64 | |
| 2025-05-03 | 11 -> 12 | 721.63 -> 720.64 | 
                        
                             SPB Riichi Open 2023: 43% -> 29%  | 
                
| 2025-04-11 | 12 -> 11 | 717.89 -> 721.63 | 
                        
                             Money can not buy tenpai: 29% -> 14%  | 
                
| 2025-03-03 | 12 | 718.91 -> 717.89 | 
                        
                             SPB Riichi Open 2023: 57% -> 43%  | 
                
| 2025-03-02 | 11 -> 12 | 730.39 -> 718.91 | 
                        
                             Riichi Maslenitsa (shrovetide): 0% -> 100%  | 
                
| 2025-02-16 | 10 -> 11 | 730.39 | |
| 2025-02-11 | 10 | 726.15 -> 730.39 | 
                        
                             Money can not buy tenpai: 43% -> 29%  | 
                
| 2025-02-02 | 9 -> 10 | 726.15 | |
| 2025-01-26 | 8 -> 9 | 726.15 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 548 | 
                     | 
                15/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 2 | 611 | 
                     | 
                38/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 3 | 582 | 
                     | 
                34/80 | 100% | 3.65 | RR | Riichi over Volga | Samara | |
| 4 | 957 | 
                     | 
                🥉 | 3/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | 
| 5 | 907 | 
                     | 
                11/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 794 | 
                     | 
                23/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 7 | 448 | 
                     | 
                49/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 8 | 75 | 
                     | 
                63/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 9 | 368 | 
                     | 
                13/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 10 | 714 | 
                     | 
                19/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 11 | 952 | 
                     | 
                5/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 12 | 345 | 
                     | 
                37/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | |
| 13 | 385 | 
                     | 
                57/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 14 | 217 | 
                     | 
                19/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | |
| 15 | 677 | 
                     | 
                11/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk | |
| 16 | 1000 | 
                     | 
                🥇 | 1/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | 
| 17 | 452 | 
                     | 
                18/32 | 0% | 2.40 | RR | Siberia Cup 2016 | Novosibirsk | |
| 18 | 326 | 
                     | 
                30/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 19 | 857 | 
                     | 
                6/36 | 0% | 1.70 | RR | Seventh winter tournament | Novosibirsk | |
| 20 | 609 | 
                     | 
                10/24 | 0% | 1.40 | RR | Furiten tournament 2014 | Novosibirsk |