Astafev Mikhail
From Yekaterinburg, Russia
Internal rating (RR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
119 place (259.91).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (678.16 * 3.75 * 0.71 + 252.34 * 4 * 1 + 102.80 * 4.60 * 1 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1) / (3.75 * 0.71 + 4 * 1 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 261.37221583738165
p2 = (678.16 * 3.75 * 0.71 + 252.34 * 4 * 1 + 202.53 * 3.65 * 1 + 212.77 * 2.80 * 1) / max_coefficients = 258.4391304347826
score = 261.37221583738165 * 0.5 + 258.4391304347826 * 0.5 = 259.9056731360821
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-01 | 108 -> 119 | 266.66 -> 259.91 | |
| 2024-08-11 | 105 -> 108 | 283.07 -> 266.66 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 102 -> 105 | 279.56 -> 283.07 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 100 -> 102 | 255.72 -> 279.56 |
Guardian of the Winds: 0% -> 100% |
| 2024-06-15 | 100 | 255.72 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 203 |
|
64/80 | 100% | 3.65 | RR | Riichi over Volga | Samara | |
| 2 | 213 |
|
38/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 3 | 103 |
|
97/108 | 100% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 252 |
|
81/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 5 | 678 |
|
29/88 | 71% | 3.75 | RR | Money can not buy tenpai | Perm |