Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

Player page

Common russian riichi rating (CRR)

Rating date Oct. 13, 2024 (latest changes Oct. 13, 2024).

167 place (204.51).

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

p1 = (96.77 * 1.80 * 0.43 + 1000 * 1.40 * 0.57 + 485.98 * 4 * 0.86 + 21.74 * 2.10 * 1 + 21.05 * 3.85 * 1) / (1.80 * 0.43 + 1.40 * 0.57 + 4 * 0.86 + 2.10 * 1 + 3.85 * 1) = 243.60721252547987

p2 = (485.98 * 4 * 0.86 + 1000 * 1.40 * 0.57 + 21.05 * 3.85 * 1 + 96.77 * 1.80 * 0.43) / max_coefficients = 165.413880126183

score = 243.60721252547987 * 0.5 + 165.413880126183 * 0.5 = 204.51054632583143

Rating changes

Show

Date Place Points Reason
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%

2024-09-01 127 -> 151 258.75 -> 217.87

SPB Riichi Open 2024: 0% -> 100%

2024-08-27 128 -> 127 258.75

Sun tournament: 14% -> 0%

2024-08-26 126 -> 128 282.84 -> 258.75
2024-08-25 126 279.29 -> 282.84

Earth cup: 57% -> 43%

2024-08-22 123 -> 126 293.39 -> 279.29

Fire cup 2023: 71% -> 57%

2024-08-11 123 292.30 -> 293.39
2024-08-04 119 -> 123 296.41 -> 292.30

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 86% 4.00 RR SPB Riichi Open 2023
4 1000 2023-04-22 1/24 57% 1.40 CRR Fire cup 2023
5 97 2023-02-25 29/32 43% 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