Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

Player page

Internal rating (RR)

Rating date Dec. 3, 2024 (latest changes Nov. 6, 2024).

153 place (117.90).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (485.98 * 4 * 0.71 + 21.74 * 2.10 * 1 + 21.05 * 3.85 * 1 + 0 + 0) / (4 * 0.71 + 2.10 * 1 + 3.85 * 1 + 1 + 1) = 140.20745428973277

p2 = (485.98 * 4 * 0.71 + 21.05 * 3.85 * 1 + 21.74 * 2.10 * 1) / max_coefficients = 95.5993690851735

score = 140.20745428973277 * 0.5 + 95.5993690851735 * 0.5 = 117.90341168745314

Rating changes

Show

all results
Date Place Points Reason
2024-11-06 159 -> 153 117.90
2024-11-03 155 -> 159 135.34 -> 117.90

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 142 -> 155 136.51 -> 135.34
2024-09-06 144 -> 142 136.51
2024-09-03 142 -> 144 150.94 -> 136.51

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 126 -> 142 174.34 -> 150.94

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 125 -> 126 173.65 -> 174.34
2024-08-04 122 -> 125 176.24 -> 173.65
2024-07-14 119 -> 122 176.24
2024-07-06 121 -> 119 176.24

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 21 2024-09-01 94/96 100% 3.85 RR SPB Riichi Open 2024
2 22 2024-03-30 46/47 100% 2.10 RR Seihoku spring tournament 2024
3 486 2023-09-03 56/108 71% 4.00 RR SPB Riichi Open 2023
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