Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date Nov. 5, 2023 (latest changes Nov. 5, 2023).
92 place (350.39).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (410.26 * 1.80 * 0.71 + 96.77 * 1.80 * 1 + 1000 * 1.40 * 1 + 485.98 * 4 * 1 + 0) / (1.80 * 0.71 + 1.80 * 1 + 1.40 * 1 + 4 * 1 + 1) = 426.49281974838027
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 1 + 410.26 * 1.80 * 0.71 + 96.77 * 1.80 * 1) / max_coefficients = 274.2779661016949
score = 426.49281974838027 * 0.5 + 274.2779661016949 * 0.5 = 350.3853929250376
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-11-05 | 87 -> 92 | 350.39 | |
2023-10-27 | 87 | 353.75 -> 350.39 |
Sun tournament: 86% -> 71% |
2023-10-22 | 84 -> 87 | 353.75 | |
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 |