Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date Sept. 14, 2024 (latest changes Sept. 14, 2024).
153 place (206.22).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (96.77 * 1.80 * 0.43 + 1000 * 1.40 * 0.57 + 485.98 * 4 * 0.86 + 21.74 * 2.10 * 1 + 21.05 * 3.85 * 1) / (1.80 * 0.43 + 1.40 * 0.57 + 4 * 0.86 + 2.10 * 1 + 3.85 * 1) = 243.60721252547987
p2 = (485.98 * 4 * 0.86 + 1000 * 1.40 * 0.57 + 21.05 * 3.85 * 1 + 96.77 * 1.80 * 0.43) / max_coefficients = 168.8396744030293
score = 243.60721252547987 * 0.5 + 168.8396744030293 * 0.5 = 206.2234434642546
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 151 -> 153 | 217.87 -> 206.22 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 128 -> 151 | 258.75 -> 217.87 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-27 | 129 -> 128 | 258.75 |
Sun tournament: 14% -> 0% |
| 2024-08-26 | 127 -> 129 | 282.84 -> 258.75 | |
| 2024-08-25 | 127 | 279.29 -> 282.84 |
Earth cup: 57% -> 43% |
| 2024-08-22 | 124 -> 127 | 293.39 -> 279.29 |
Fire cup 2023: 71% -> 57% |
| 2024-08-11 | 124 | 292.30 -> 293.39 | |
| 2024-08-04 | 120 -> 124 | 296.41 -> 292.30 | |
| 2024-07-14 | 113 -> 120 | 296.41 | |
| 2024-07-03 | 114 -> 113 | 296.41 |