Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
151 place (217.87).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (96.77 * 1.80 * 0.43 + 1000 * 1.40 * 0.57 + 485.98 * 4 * 1 + 21.74 * 2.10 * 1 + 21.05 * 3.85 * 1) / (1.80 * 0.43 + 1.40 * 0.57 + 4 * 1 + 2.10 * 1 + 3.85 * 1) = 255.63210848643922
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 0.57 + 21.05 * 3.85 * 1 + 96.77 * 1.80 * 0.43) / max_coefficients = 180.09937888198763
score = 255.63210848643922 * 0.5 + 180.09937888198763 * 0.5 = 217.86574368421344
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-07-14 | 113 -> 119 | 296.41 | |
| 2024-07-03 | 114 -> 113 | 296.41 | |
| 2024-06-27 | 112 -> 114 | 300.39 -> 296.41 |
Sun tournament: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 21 |
|
94/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 22 |
|
46/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 3 | 486 |
|
56/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 4 | 1000 |
|
1/24 | 57% | 1.40 | CRR | Fire cup 2023 |
| 5 | 97 |
|
29/32 | 43% | 1.80 | CRR | Earth cup |
| 6 | 410 |
|
24/40 | 0% | 1.80 | CRR | Sun tournament |
| 7 | 721 |
|
32/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
| 8 | 571 |
|
28/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
| 9 | 692 |
|
13/40 | 0% | 2.90 | RR | Summer Cup 2019 |
| 10 | 590 |
|
17/40 | 0% | 2.90 | RR | North Cup 2018 |
| 11 | 677 |
|
11/32 | 0% | 2.70 | RR | East Cup 2018 |
| 12 | 108 |
|
75/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
| 13 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
| 14 | 1000 |
|
1/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
| 15 | 977 |
|
2/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
| 16 | 533 |
|
8/16 | 0% | 1.20 | RR | Riichi mahjong league tournament 2016 (JPML-A rules) |
| 17 | 162 |
|
84/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
| 18 | 684 |
|
7/20 | 0% | 1.30 | RR | Tournament of Saint Petersburg riichi mahjong league |