Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date April 11, 2025 (latest changes April 11, 2025).
129 place (287.08).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (735.63 * 3.75 * 0.14 + 370.79 * 3.75 * 1 + 516.13 * 3.10 * 1 + 0 + 0) / (3.75 * 0.14 + 3.75 * 1 + 3.10 * 1 + 1 + 1) = 360.61208997562824
p2 = (516.13 * 3.10 * 1 + 370.79 * 3.75 * 1 + 735.63 * 3.75 * 0.14) / max_coefficients = 213.54321766561515
score = 360.61208997562824 * 0.5 + 213.54321766561515 * 0.5 = 287.07765382062166
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-04-11 | 124 -> 129 | 309.63 -> 287.08 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-03 | 125 -> 124 | 309.63 | |
| 2025-03-02 | 122 -> 125 | 309.63 | |
| 2025-02-16 | 115 -> 122 | 309.63 | |
| 2025-02-11 | 108 -> 115 | 331.15 -> 309.63 |
Money can not buy tenpai: 43% -> 29% |
| 2025-02-02 | 106 -> 108 | 331.15 | |
| 2025-01-26 | 103 -> 106 | 331.15 | |
| 2025-01-07 | 120 -> 103 | 235.09 -> 331.15 |
Moscow Open Riichi Marathon: 0% -> 100% |
| 2025-01-03 | 122 -> 120 | 235.09 | |
| 2024-12-11 | 117 -> 122 | 260.39 -> 235.09 |
Money can not buy tenpai: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 516 |
|
16/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow |
| 2 | 371 |
|
57/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
| 3 | 736 |
|
24/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm |
| 4 | 587 |
|
32/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |
| 5 | 360 |
|
72/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |