Matveeva Alyona
From Barnaul, Russia
EMA: 15020090
Internal rating (RR)
Rating date June 8, 2025 (latest changes June 8, 2025).
111 place (362.25).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (931.03 * 3.75 * 0.14 + 794.39 * 4.60 * 0.86 + 0 + 0 + 0) / (3.75 * 0.14 + 4.60 * 0.86 + 1 + 1 + 1) = 485.5148769110528
p2 = (794.39 * 4.60 * 0.86 + 931.03 * 3.75 * 0.14) / max_coefficients = 238.9930400601343
score = 485.5148769110528 * 0.5 + 238.9930400601343 * 0.5 = 362.25395848559356
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2025-05-30 | 112 -> 111 | 362.25 | |
| 2025-05-12 | 104 -> 112 | 386.25 -> 362.25 | 
                        
                             X Russian Championship: 100% -> 86%  | 
                
| 2025-05-03 | 101 -> 104 | 386.25 | |
| 2025-04-26 | 99 -> 101 | 386.25 | |
| 2025-04-11 | 90 -> 99 | 414.96 -> 386.25 | 
                        
                             Money can not buy tenpai: 29% -> 14%  | 
                
| 2025-03-03 | 93 -> 90 | 414.96 | |
| 2025-03-02 | 90 -> 93 | 414.96 | |
| 2025-02-16 | 85 -> 90 | 414.96 | |
| 2025-02-11 | 75 -> 85 | 442.18 -> 414.96 | 
                        
                             Money can not buy tenpai: 43% -> 29%  | 
                
| 2025-02-02 | 70 -> 75 | 442.18 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 794 | 
                     | 
                23/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 2 | 931 | 
                     | 
                7/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 3 | 840 | 
                     | 
                13/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 4 | 910 | 
                     | 
                7/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 5 | 1000 | 
                     | 
                🥇 | 1/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | 
| 6 | 302 | 
                     | 
                45/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 7 | 778 | 
                     | 
                7/28 | 0% | 2.30 | RR | The Green dragon tournament | Novosibirsk | |
| 8 | 735 | 
                     | 
                23/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 9 | 964 | 
                     | 
                🥉 | 3/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | 
| 10 | 868 | 
                     | 
                13/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 11 | 957 | 
                     | 
                🥈 | 2/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | 
| 12 | 839 | 
                     | 
                6/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk | |
| 13 | 857 | 
                     | 
                6/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 14 | 806 | 
                     | 
                7/32 | 0% | 2.40 | RR | Siberia Cup 2016 | Novosibirsk | |
| 15 | 222 | 
                     | 
                78/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 | Moscow | |
| 16 | 930 | 
                     | 
                4/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk |