Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

Player page

Common russian riichi rating (CRR)

Rating date Dec. 11, 2024 (latest changes Dec. 11, 2024).

172 place (175.97).

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

p1 = (96.77 * 1.80 * 0.29 + 485.98 * 4 * 0.71 + 21.74 * 2.10 * 1 + 1000 * 1.40 * 0.43 + 21.05 * 3.85 * 1) / (1.80 * 0.29 + 4 * 0.71 + 2.10 * 1 + 1.40 * 0.43 + 3.85 * 1) = 218.21901930151694

p2 = (485.98 * 4 * 0.71 + 1000 * 1.40 * 0.43 + 21.05 * 3.85 * 1 + 96.77 * 1.80 * 0.29) / max_coefficients = 133.7167192429022

score = 218.21901930151694 * 0.5 + 133.7167192429022 * 0.5 = 175.96786927220955

Rating changes

Show

Date Place Points Reason
2024-12-01 171 -> 172 175.97
2024-11-05 173 -> 171 175.97
2024-11-04 172 -> 173 175.97
2024-11-03 170 -> 172 192.01 -> 175.97

SPB Riichi Open 2023: 86% -> 71%

2024-10-27 169 -> 170 192.01
2024-10-25 170 -> 169 191.17 -> 192.01

Earth cup: 43% -> 29%

2024-10-22 167 -> 170 204.51 -> 191.17

Fire cup 2023: 57% -> 43%

2024-10-13 156 -> 167 206.22 -> 204.51
2024-09-15 153 -> 156 206.22
2024-09-03 151 -> 153 217.87 -> 206.22

SPB Riichi Open 2023: 100% -> 86%

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 1000 2023-04-22 1/24 43% 1.40 CRR Fire cup 2023
5 97 2023-02-25 29/32 29% 1.80 CRR Earth cup
6 410 2022-08-27 24/40 0% 1.80 CRR Sun tournament
7 721 2019-12-15 32/112 0% 4.05 EMA VIII Russian Riichi Championship
8 571 2019-11-24 28/64 0% 3.45 EMA Saint Petersburg Open 2019
9 692 2019-06-02 13/40 0% 2.90 RR Summer Cup 2019
10 590 2018-12-23 17/40 0% 2.90 RR North Cup 2018
11 677 2018-03-04 11/32 0% 2.70 RR East Cup 2018
12 108 2017-12-11 75/84 0% 3.40 EMA VI Russian Riichi Championship 2017
13 1000 2017-10-01 1/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
14 1000 2017-06-03 1/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
15 977 2017-03-18 2/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
16 533 2016-04-17 8/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules)
17 162 2016-03-13 84/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
18 684 2015-11-15 7/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league