Astafev Mikhail
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Feb. 18, 2024 (latest changes Feb. 18, 2024).
57 place (424.71).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (368.42 * 2.10 * 1 + 678.16 * 3.75 * 1 + 252.34 * 4 * 1 + 592.59 * 2.30 * 1 + 0) / (2.10 * 1 + 3.75 * 1 + 4 * 1 + 2.30 * 1 + 1) = 432.63041825095064
p2 = (678.16 * 3.75 * 1 + 592.59 * 2.30 * 1 + 252.34 * 4 * 1 + 368.42 * 2.10 * 1) / max_coefficients = 416.78131817735596
score = 432.63041825095064 * 0.5 + 416.78131817735596 * 0.5 = 424.70586821415327
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-12 | 59 -> 57 | 424.71 | |
| 2024-01-20 | 60 -> 59 | 424.71 | |
| 2024-01-06 | 61 -> 60 | 415.93 -> 424.71 | |
| 2023-12-19 | 62 -> 61 | 415.93 | |
| 2023-12-18 | 63 -> 62 | 415.93 | |
| 2023-12-12 | 65 -> 63 | 415.93 | |
| 2023-11-28 | 67 -> 65 | 415.93 | |
| 2023-11-26 | 62 -> 67 | 417.35 -> 415.93 | |
| 2023-11-06 | 64 -> 62 | 409.17 -> 417.35 | |
| 2023-11-05 | 99 -> 64 | 329.19 -> 409.17 |
Finding Dora: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 593 |
|
12/28 | 100% | 2.30 | CRR | Finding Dora |
| 2 | 252 |
|
81/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 368 |
|
13/20 | 100% | 2.10 | CRR | 13 tiles until tempai |
| 4 | 678 |
|
29/88 | 100% | 3.75 | RR | Money can not buy tenpai |