Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

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Common russian riichi rating (CRR)

Rating date May 1, 2023 (latest changes May 1, 2023).

109 place (247.49).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 2.80 * 1) = 14.04985

p1 = (410.26 * 1.80 * 1 + 96.77 * 1.80 * 1 + 1000 * 1.40 * 1 + 0 + 0) / (1.80 * 1 + 1.80 * 1 + 1.40 * 1 + 1 + 1) = 330.37857142857143

p2 = (1000 * 1.40 * 1 + 410.26 * 1.80 * 1 + 96.77 * 1.80 * 1) / max_coefficients = 164.60318081687706

score = 330.37857142857143 * 0.5 + 164.60318081687706 * 0.5 = 247.49087612272425

Rating changes

Show

all results
Date Place Points Reason
2023-05-01 107 -> 109 247.49
2023-04-22 136 -> 107 101.62 -> 247.49

Fire cup 2023: 0% -> 100%
2023-03-20 136 100.50 -> 101.62
2023-02-25 44 -> 136 465.75 -> 100.50

Earth cup: 0% -> 100%
2021-02-01 42 -> 44 593.89 -> 465.75
2020-02-01 42 593.89

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 1000 2023-04-22 1/24 100% 1.40 CRR Fire cup 2023
2 97 2023-02-25 29/32 100% 1.80 CRR Earth cup
3 410 2022-08-27 24/40 100% 1.80 CRR Sun tournament
4 721 2019-12-15 32/112 0% 4.05 EMA VIII Russian Riichi Championship
5 571 2019-11-24 28/64 0% 3.45 EMA Saint Petersburg Open 2019
6 692 2019-06-02 13/40 0% 2.90 RR Summer Cup 2019
7 590 2018-12-23 17/40 0% 2.90 RR North Cup 2018
8 677 2018-03-04 11/32 0% 2.70 RR East Cup 2018
9 108 2017-12-11 75/84 0% 3.40 EMA VI Russian Riichi Championship 2017
10 1000 2017-10-01 1/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
11 1000 2017-06-03 1/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
12 977 2017-03-18 2/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
13 533 2016-04-17 8/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules)
14 162 2016-03-13 84/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
15 684 2015-11-15 7/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league