Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date Oct. 20, 2023 (latest changes Oct. 20, 2023).
84 place (353.75).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (96.77 * 1.80 * 1 + 410.26 * 1.80 * 0.86 + 1000 * 1.40 * 1 + 485.98 * 4 * 1 + 0) / (1.80 * 1 + 1.80 * 0.86 + 1.40 * 1 + 4 * 1 + 1) = 426.0652503700176
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 1 + 410.26 * 1.80 * 0.86 + 96.77 * 1.80 * 1) / max_coefficients = 281.42779661016954
score = 426.0652503700176 * 0.5 + 281.42779661016954 * 0.5 = 353.7465234900936
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-10-12 | 88 -> 84 | 352.87 -> 353.75 | |
| 2023-09-28 | 87 -> 88 | 352.87 | |
| 2023-09-20 | 88 -> 87 | 352.87 | |
| 2023-09-06 | 89 -> 88 | 352.87 | |
| 2023-09-03 | 116 -> 89 | 244.56 -> 352.87 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 109 -> 116 | 249.95 -> 244.56 |
Sun tournament: 100% -> 86% |
| 2023-08-26 | 106 -> 109 | 249.95 | |
| 2023-08-19 | 110 -> 106 | 249.95 | |
| 2023-08-12 | 111 -> 110 | 246.50 -> 249.95 | |
| 2023-07-28 | 113 -> 111 | 246.50 |