Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date May 20, 2023 (latest changes May 20, 2023).
103 place (250.53).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 2.80 * 1 + 3.50 * 0.71) = 13.55005
p1 = (96.77 * 1.80 * 1 + 1000 * 1.40 * 1 + 410.26 * 1.80 * 1 + 0 + 0) / (1.80 * 1 + 1.40 * 1 + 1.80 * 1 + 1 + 1) = 330.37857142857143
p2 = (1000 * 1.40 * 1 + 410.26 * 1.80 * 1 + 96.77 * 1.80 * 1) / max_coefficients = 170.6746469570223
score = 330.37857142857143 * 0.5 + 170.6746469570223 * 0.5 = 250.52660919279685
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 |