Chekan Vikmar

From Saint Petersburg, Russia

EMA: 15990345

Player page

Internal rating (RR)

Rating date Sept. 13, 2026 (latest changes Sept. 13, 2026).

266 place (0.00).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (0 * 3.45 * 0.86 + 0 * 3.40 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 3.40 * 1 + 1 + 1 + 1) = 0.0

p2 = (0 * 3.45 * 0.86 + 0 * 3.40 * 1) / max_coefficients = 0.0

score = 0.0 * 0.5 + 0.0 * 0.5 = 0.0

Rating changes

Show

all results
Date Place Points Reason
2026-09-06 268 -> 266 1.27 -> 0.00

Sunset Wolf Cup 2026: 0% -> 100%
2026-08-31 268 1.20 -> 1.27

SPB Riichi Open 2025: 100% -> 86%
2026-08-16 262 -> 268 1.20
2026-08-04 268 -> 262 1.20
2026-08-02 265 -> 268 1.20
2026-07-25 261 -> 265 1.20
2026-07-18 254 -> 261 1.20
2026-07-14 256 -> 254 1.20
2026-07-12 252 -> 256 1.20
2026-07-01 252 2.28 -> 1.20

SPB Riichi Open 2024: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 0 2026-09-06 72/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 0 2025-08-31 78/78 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 21 2024-09-01 94/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 22 2024-03-30 46/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
5 486 2023-09-03 56/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
6 721 2019-12-15 32/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
7 571 2019-11-24 28/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
8 692 2019-06-02 13/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
9 590 2018-12-23 17/40 0% 2.90 RR North Cup 2018 Saint Petersburg
10 677 2018-03-04 11/32 0% 2.70 RR East Cup 2018 Saint Petersburg
11 108 2017-12-11 75/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
12 1000 2017-10-01 🥇 1/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017 Saint Petersburg
13 1000 2017-06-03 🥇 1/40 0% 1.80 RR Saint Petersburg championship. West cup 2017 Saint Petersburg
14 977 2017-03-18 🥈 2/44 0% 1.90 RR Saint Petersburg championship. South cup 2017 Saint Petersburg
15 533 2016-04-17 8/16 0% 1.20 RR Riichi mahjong league tournament 2016 (JPML-A rules) Moscow
16 162 2016-03-13 84/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
17 684 2015-11-15 7/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league Saint Petersburg