Astafev Mikhail
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).
102 place (328.27).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (678.16 * 3.75 * 1 + 368.42 * 2.10 * 1 + 252.34 * 4 * 1 + 0 + 0) / (3.75 * 1 + 2.10 * 1 + 4 * 1 + 1 + 1) = 365.07426160337553
p2 = (678.16 * 3.75 * 1 + 252.34 * 4 * 1 + 368.42 * 2.10 * 1) / max_coefficients = 291.4609428134568
score = 365.07426160337553 * 0.5 + 291.4609428134568 * 0.5 = 328.2676022084162
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-03 | 92 -> 102 | 308.95 -> 328.27 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 92 | 308.95 |
13 tiles until tempai: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 252 |
|
81/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 368 |
|
13/20 | 100% | 2.10 | CRR | 13 tiles until tempai |
| 3 | 678 |
|
29/88 | 100% | 3.75 | RR | Money can not buy tenpai |