Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Internal rating (RR)
Rating date May 24, 2022 (latest changes April 30, 2022).
54 place (528.21).
how we calculated rating score
max_coefficients = (4.05 * 1 + 3.85 * 1 + 3.50 * 1 + 3.45 * 1) = 14.850000000000001
p1 = (589.74 * 2.90 * 0.29 + 692.31 * 2.90 * 0.71 + 571.43 * 3.45 * 1 + 720.72 * 4.05 * 1 + 0) / (2.90 * 0.29 + 2.90 * 0.71 + 3.45 * 1 + 4.05 * 1 + 1) = 597.6368421052632
p2 = (720.72 * 4.05 * 1 + 571.43 * 3.45 * 1 + 692.31 * 2.90 * 0.71 + 589.74 * 2.90 * 0.29) / max_coefficients = 458.7919191919192
score = 597.6368421052632 * 0.5 + 458.7919191919192 * 0.5 = 528.2143806485913
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2022-04-30 | 55 -> 54 | 536.31 -> 528.21 |
North Cup 2018: 43% -> 29% |
2022-03-30 | 55 | 547.57 -> 536.31 |
Summer Cup 2019: 86% -> 71% |
2022-03-20 | 53 -> 55 | 548.40 -> 547.57 | |
2022-02-28 | 55 -> 53 | 553.91 -> 548.40 |
North Cup 2018: 57% -> 43% |
2022-01-30 | 52 -> 55 | 564.96 -> 553.91 |
Summer Cup 2019: 100% -> 86% |
2021-12-30 | 54 -> 52 | 562.45 -> 564.96 |
North Cup 2018: 71% -> 57% |
2021-12-19 | 52 -> 54 | 562.45 | |
2021-11-30 | 53 -> 52 | 562.45 | |
2021-11-28 | 52 -> 53 | 562.45 | |
2021-11-06 | 51 -> 52 | 562.45 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 721 |
|
32/112 | 100% | 4.05 | EMA | VIII Russian Riichi Championship |
2 | 571 |
|
28/64 | 100% | 3.45 | EMA | Saint Petersburg Open 2019 |
3 | 692 |
|
13/40 | 71% | 2.90 | RR | Summer Cup 2019 |
4 | 590 |
|
17/40 | 29% | 2.90 | RR | North Cup 2018 |
5 | 677 |
|
11/32 | 0% | 2.70 | RR | East Cup 2018 |
6 | 108 |
|
75/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
7 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
8 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
9 | 977 |
|
2/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
10 | 533 |
|
8/16 | 0% | 1.20 | RR | Riichi mahjong league tournament 2016 (JPML-A rules) |
11 | 162 |
|
84/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
12 | 684 |
|
7/20 | 0% | 1.30 | RR | Tournament of Saint Petersburg riichi mahjong league |