Bykov Dmitriy
From Saint Petersburg, Russia
EMA: 15990236
Common russian riichi rating (CRR)
Rating date Dec. 3, 2024 (latest changes Dec. 1, 2024).
173 place (171.44).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (299.07 * 4 * 0.71 + 578.95 * 1.50 * 1 + 0 + 0 + 0) / (4 * 0.71 + 1.50 * 1 + 1 + 1 + 1) = 234.18012287283202
p2 = (578.95 * 1.50 * 1 + 299.07 * 4 * 0.71) / max_coefficients = 108.70094637223974
score = 234.18012287283202 * 0.5 + 108.70094637223974 * 0.5 = 171.4405346225359
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-12-01 | 172 -> 173 | 171.44 | |
| 2024-11-14 | 173 -> 172 | 171.44 | |
| 2024-11-05 | 176 -> 173 | 171.44 | |
| 2024-11-04 | 174 -> 176 | 171.44 | |
| 2024-11-03 | 174 | 179.17 -> 171.44 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-27 | 173 -> 174 | 179.17 | |
| 2024-10-25 | 174 -> 173 | 179.17 | |
| 2024-10-13 | 163 -> 174 | 180.40 -> 179.17 | |
| 2024-10-11 | 162 -> 163 | 180.40 | |
| 2024-09-15 | 159 -> 162 | 180.40 |