Sychev Ivan
From Saint Petersburg, Russia
EMA: 15990298
Common russian riichi rating (CRR)
Rating date Aug. 4, 2024 (latest changes Aug. 4, 2024).
89 place (410.43).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.75 * 0.86) = 15.464125
p1 = (739.13 * 1.40 * 0.71 + 897.20 * 4 * 1 + 0 + 0 + 0) / (1.40 * 0.71 + 4 * 1 + 1 + 1 + 1) = 540.9911475221312
p2 = (897.20 * 4 * 1 + 739.13 * 1.40 * 0.71) / max_coefficients = 279.86969841487957
score = 540.9911475221312 * 0.5 + 279.86969841487957 * 0.5 = 410.43042296850535
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-08-04 | 79 -> 89 | 416.08 -> 410.43 | |
| 2024-07-14 | 75 -> 79 | 416.08 | |
| 2024-07-06 | 78 -> 75 | 416.08 | |
| 2024-06-27 | 79 -> 78 | 416.08 | |
| 2024-06-22 | 77 -> 79 | 423.46 -> 416.08 |
Fire cup 2023: 86% -> 71% |
| 2024-06-18 | 76 -> 77 | 423.46 | |
| 2024-06-11 | 81 -> 76 | 418.23 -> 423.46 | |
| 2024-06-09 | 78 -> 81 | 418.23 | |
| 2024-05-19 | 75 -> 78 | 418.23 | |
| 2024-05-12 | 59 -> 75 | 436.26 -> 418.23 |