Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date Oct. 20, 2023 (latest changes Oct. 20, 2023).
84 place (353.75).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (410.26 * 1.80 * 0.86 + 96.77 * 1.80 * 1 + 1000 * 1.40 * 1 + 485.98 * 4 * 1 + 0) / (1.80 * 0.86 + 1.80 * 1 + 1.40 * 1 + 4 * 1 + 1) = 426.0652503700176
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 1 + 410.26 * 1.80 * 0.86 + 96.77 * 1.80 * 1) / max_coefficients = 281.42779661016954
score = 426.0652503700176 * 0.5 + 281.42779661016954 * 0.5 = 353.7465234900936
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-10-12 | 88 -> 84 | 352.87 -> 353.75 | |
2023-09-28 | 87 -> 88 | 352.87 | |
2023-09-20 | 88 -> 87 | 352.87 | |
2023-09-06 | 89 -> 88 | 352.87 | |
2023-09-03 | 115 -> 89 | 244.56 -> 352.87 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-27 | 108 -> 115 | 249.95 -> 244.56 |
Sun tournament: 100% -> 86% |
2023-08-26 | 105 -> 108 | 249.95 | |
2023-08-19 | 109 -> 105 | 249.95 | |
2023-08-12 | 110 -> 109 | 246.50 -> 249.95 | |
2023-07-28 | 112 -> 110 | 246.50 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 486 |
|
56/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 1000 |
|
1/24 | 100% | 1.40 | CRR | Fire cup 2023 |
3 | 97 |
|
29/32 | 100% | 1.80 | CRR | Earth cup |
4 | 410 |
|
24/40 | 86% | 1.80 | CRR | Sun tournament |
5 | 721 |
|
32/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
6 | 571 |
|
28/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
7 | 692 |
|
13/40 | 0% | 2.90 | RR | Summer Cup 2019 |
8 | 590 |
|
17/40 | 0% | 2.90 | RR | North Cup 2018 |
9 | 677 |
|
11/32 | 0% | 2.70 | RR | East Cup 2018 |
10 | 108 |
|
75/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
11 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
12 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
13 | 977 |
|
2/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
14 | 533 |
|
8/16 | 0% | 1.20 | RR | Riichi mahjong league tournament 2016 (JPML-A rules) |
15 | 162 |
|
84/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
16 | 684 |
|
7/20 | 0% | 1.30 | RR | Tournament of Saint Petersburg riichi mahjong league |