Bykov Dmitriy
From Saint Petersburg, Russia
EMA: 15990236
Common russian riichi rating (CRR)
Rating date Oct. 20, 2023 (latest changes Oct. 20, 2023).
154 place (157.42).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (746.67 * 3.45 * 0.14 + 299.07 * 4 * 1 + 0 + 0 + 0) / (3.45 * 0.14 + 4 * 1 + 1 + 1 + 1) = 208.77738637569306
p2 = (299.07 * 4 * 1 + 746.67 * 3.45 * 0.14) / max_coefficients = 106.05898305084744
score = 208.77738637569306 * 0.5 + 106.05898305084744 * 0.5 = 157.41818471327025
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-10-20 | 155 -> 154 | 157.42 | |
2023-10-19 | 157 -> 155 | 157.42 | |
2023-10-12 | 158 -> 157 | 157.09 -> 157.42 | |
2023-09-28 | 145 -> 158 | 186.07 -> 157.09 |
Saint Petersburg Open 2021: 29% -> 14% |
2023-09-20 | 146 -> 145 | 186.07 | |
2023-09-09 | 147 -> 146 | 186.07 | |
2023-09-06 | 149 -> 147 | 186.07 | |
2023-09-05 | 150 -> 149 | 186.07 | |
2023-09-03 | 73 -> 150 | 490.15 -> 186.07 |
SPB Riichi Open 2023: 0% -> 100% |
2020-02-01 | 73 | 490.15 |