Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date June 11, 2024 (latest changes June 11, 2024).
109 place (310.71).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 0.86 + 3.05 * 1) = 14.864125000000001
p1 = (96.77 * 1.80 * 0.71 + 410.26 * 1.80 * 0.29 + 1000 * 1.40 * 0.86 + 21.74 * 2.10 * 1 + 485.98 * 4 * 1) / (1.80 * 0.71 + 1.80 * 0.29 + 1.40 * 0.86 + 2.10 * 1 + 4 * 1) = 387.3574990604334
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 0.86 + 410.26 * 1.80 * 0.29 + 96.77 * 1.80 * 0.71) / max_coefficients = 234.0723049624515
score = 387.3574990604334 * 0.5 + 234.0723049624515 * 0.5 = 310.71490201144246
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-06-11 | 112 -> 109 | 306.64 -> 310.71 | |
| 2024-06-09 | 107 -> 112 | 306.64 | |
| 2024-05-12 | 86 -> 107 | 320.66 -> 306.64 | |
| 2024-05-06 | 88 -> 86 | 320.66 | |
| 2024-04-27 | 86 -> 88 | 324.83 -> 320.66 |
Sun tournament: 43% -> 29% |
| 2024-04-25 | 88 -> 86 | 321.84 -> 324.83 |
Earth cup: 86% -> 71% |
| 2024-04-22 | 84 -> 88 | 335.46 -> 321.84 |
Fire cup 2023: 100% -> 86% |
| 2024-04-18 | 85 -> 84 | 335.46 | |
| 2024-04-12 | 86 -> 85 | 335.46 | |
| 2024-03-30 | 75 -> 86 | 357.63 -> 335.46 |
Seihoku spring tournament 2024: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 22 |
|
46/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 2 | 486 |
|
56/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 1000 |
|
1/24 | 86% | 1.40 | CRR | Fire cup 2023 |
| 4 | 97 |
|
29/32 | 71% | 1.80 | CRR | Earth cup |
| 5 | 410 |
|
24/40 | 29% | 1.80 | CRR | Sun tournament |
| 6 | 721 |
|
32/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
| 7 | 571 |
|
28/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
| 8 | 692 |
|
13/40 | 0% | 2.90 | RR | Summer Cup 2019 |
| 9 | 590 |
|
17/40 | 0% | 2.90 | RR | North Cup 2018 |
| 10 | 677 |
|
11/32 | 0% | 2.70 | RR | East Cup 2018 |
| 11 | 108 |
|
75/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
| 12 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
| 13 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
| 14 | 977 |
|
2/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
| 15 | 533 |
|
8/16 | 0% | 1.20 | RR | Riichi mahjong league tournament 2016 (JPML-A rules) |
| 16 | 162 |
|
84/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
| 17 | 684 |
|
7/20 | 0% | 1.30 | RR | Tournament of Saint Petersburg riichi mahjong league |