Astafev Mikhail
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).
120 place (330.34).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (678.16 * 3.75 * 0.57 + 368.42 * 2.10 * 0.86 + 252.34 * 4 * 0.86 + 592.59 * 2.30 * 1 + 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 * 0.86 + 4 * 0.86 + 2.30 * 1 + 2.30 * 1 + 1.60 * 1 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 330.35458262154424
p2 = (678.16 * 3.75 * 0.57 + 629.63 * 2.30 * 1 + 592.59 * 2.30 * 1 + 252.34 * 4 * 0.86) / max_coefficients = 330.32057391617934
score = 330.35458262154424 * 0.5 + 330.32057391617934 * 0.5 = 330.33757826886176
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-11 | 117 -> 120 | 345.74 -> 330.34 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-15 | 115 -> 117 | 345.74 | |
| 2024-09-06 | 116 -> 115 | 345.74 | |
| 2024-09-03 | 117 -> 116 | 342.99 -> 345.74 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 102 -> 117 | 352.15 -> 342.99 | |
| 2024-08-27 | 103 -> 102 | 352.34 -> 352.15 |
13 tiles until tempai: 100% -> 86% |
| 2024-08-26 | 106 -> 103 | 352.34 | |
| 2024-08-11 | 103 -> 106 | 365.57 -> 352.34 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 94 -> 103 | 384.60 -> 365.57 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 84 -> 94 | 395.23 -> 384.60 |
Guardian of the Winds: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | 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 | 333 |
|
11/16 | 100% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk | |
| 5 | 630 |
|
11/28 | 100% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
| 6 | 593 |
|
12/28 | 100% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
| 7 | 252 |
|
81/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 368 |
|
13/20 | 86% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg | |
| 9 | 678 |
|
29/88 | 57% | 3.75 | RR | Money can not buy tenpai | Perm |