Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date June 19, 2023 (latest changes June 19, 2023).
117 place (246.50).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255
p1 = (410.26 * 1.80 * 1 + 96.77 * 1.80 * 1 + 1000 * 1.40 * 1 + 0 + 0) / (1.80 * 1 + 1.80 * 1 + 1.40 * 1 + 1 + 1) = 330.37857142857143
p2 = (1000 * 1.40 * 1 + 410.26 * 1.80 * 1 + 96.77 * 1.80 * 1) / max_coefficients = 162.61926250531337
score = 330.37857142857143 * 0.5 + 162.61926250531337 * 0.5 = 246.4989169669424
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-06-19 | 118 -> 117 | 246.50 | |
| 2023-06-12 | 118 | 243.32 -> 246.50 | |
| 2023-06-11 | 103 -> 118 | 250.53 -> 243.32 | |
| 2023-05-20 | 105 -> 103 | 247.49 -> 250.53 | |
| 2023-05-06 | 107 -> 105 | 247.49 | |
| 2023-05-05 | 43 -> 107 | 465.75 -> 247.49 | |
| 2021-02-01 | 41 -> 43 | 593.89 -> 465.75 | |
| 2020-02-01 | 41 | 593.89 |