Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Common russian riichi rating (CRR)
Rating date April 22, 2024 (latest changes April 22, 2024).
88 place (321.84).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (410.26 * 1.80 * 0.43 + 96.77 * 1.80 * 0.86 + 1000 * 1.40 * 0.86 + 485.98 * 4 * 1 + 21.74 * 2.10 * 1) / (1.80 * 0.43 + 1.80 * 0.86 + 1.40 * 0.86 + 4 * 1 + 2.10 * 1) = 380.2001206548647
p2 = (485.98 * 4 * 1 + 1000 * 1.40 * 0.86 + 410.26 * 1.80 * 0.43 + 96.77 * 1.80 * 0.86) / max_coefficients = 263.4795620437956
score = 380.2001206548647 * 0.5 + 263.4795620437956 * 0.5 = 321.8398413493302
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-22 | 84 -> 88 | 335.46 -> 321.84 |
Fire cup 2023: 100% -> 86% |
| 2024-04-18 | 85 -> 84 | 335.46 | |
| 2024-04-12 | 86 -> 85 | 335.46 | |
| 2024-03-30 | 75 -> 86 | 357.63 -> 335.46 |
Seihoku spring tournament 2024: 0% -> 100% |
| 2024-03-20 | 79 -> 75 | 357.63 | |
| 2024-03-10 | 74 -> 79 | 364.56 -> 357.63 | |
| 2024-03-06 | 76 -> 74 | 358.14 -> 364.56 | |
| 2024-02-27 | 76 | 361.62 -> 358.14 |
Sun tournament: 57% -> 43% |
| 2024-02-25 | 74 -> 76 | 357.80 -> 361.62 |
Earth cup: 100% -> 86% |
| 2024-02-12 | 76 -> 74 | 357.80 |