Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

Player page

Internal rating (RR)

Rating date May 24, 2022 (latest changes April 30, 2022).

54 place (528.21).

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

Show

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 2019-12-15 32/112 100% 4.05 EMA VIII Russian Riichi Championship
2 571 2019-11-24 28/64 100% 3.45 EMA Saint Petersburg Open 2019
3 692 2019-06-02 13/40 71% 2.90 RR Summer Cup 2019
4 590 2018-12-23 17/40 29% 2.90 RR North Cup 2018
5 677 2018-03-04 11/32 0% 2.70 RR East Cup 2018
6 108 2017-12-11 75/84 0% 3.40 EMA VI Russian Riichi Championship 2017
7 1000 2017-10-01 1/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
8 1000 2017-06-03 1/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
9 977 2017-03-18 2/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
10 533 2016-04-17 8/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules)
11 162 2016-03-13 84/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
12 684 2015-11-15 7/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league