Astafev Mikhail
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2024 (latest changes Nov. 5, 2024).
126 place (315.74).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (678.16 * 3.75 * 0.57 + 368.42 * 2.10 * 0.71 + 252.34 * 4 * 0.71 + 592.59 * 2.30 * 0.86 + 629.63 * 2.30 * 1 + 333.33 * 1.60 * 1 + 102.80 * 4.60 * 1 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1) / (3.75 * 0.57 + 2.10 * 0.71 + 4 * 0.71 + 2.30 * 0.86 + 2.30 * 1 + 1.60 * 1 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 328.0905295220464
p2 = (678.16 * 3.75 * 0.57 + 629.63 * 2.30 * 1 + 592.59 * 2.30 * 0.86 + 202.53 * 3.65 * 1) / max_coefficients = 303.38927444794956
score = 328.0905295220464 * 0.5 + 303.38927444794956 * 0.5 = 315.73990198499797
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-11-05 | 126 | 323.71 -> 315.74 |
Finding Dora: 100% -> 86% |
2024-11-03 | 127 -> 126 | 326.75 -> 323.71 |
SPB Riichi Open 2023: 86% -> 71% |
2024-10-27 | 127 | 326.99 -> 326.75 |
13 tiles until tempai: 86% -> 71% |
2024-10-13 | 119 -> 127 | 330.34 -> 326.99 | |
2024-10-11 | 116 -> 119 | 345.74 -> 330.34 |
Money can not buy tenpai: 71% -> 57% |
2024-09-15 | 114 -> 116 | 345.74 | |
2024-09-06 | 115 -> 114 | 345.74 | |
2024-09-03 | 116 -> 115 | 342.99 -> 345.74 |
SPB Riichi Open 2023: 100% -> 86% |
2024-09-01 | 102 -> 116 | 352.15 -> 342.99 | |
2024-08-27 | 103 -> 102 | 352.34 -> 352.15 |
13 tiles until tempai: 100% -> 86% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 203 |
|
64/80 | 100% | 3.65 | RR | Riichi over Volga |
2 | 213 |
|
38/48 | 100% | 2.80 | RR | Guardian of the Winds |
3 | 103 |
|
97/108 | 100% | 4.60 | RR | X Russian Championship |
4 | 333 |
|
11/16 | 100% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 |
5 | 630 |
|
11/28 | 100% | 2.30 | CRR | Chasing Kan |
6 | 593 |
|
12/28 | 86% | 2.30 | CRR | Finding Dora |
7 | 252 |
|
81/108 | 71% | 4.00 | RR | SPB Riichi Open 2023 |
8 | 368 |
|
13/20 | 71% | 2.10 | CRR | 13 tiles until tempai |
9 | 678 |
|
29/88 | 57% | 3.75 | RR | Money can not buy tenpai |