Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).
99 place (386.05).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (903.23 * 1.80 * 1 + 586.67 * 4.20 * 0.14 + 735.63 * 3.75 * 0.57 + 0 + 0) / (1.80 * 1 + 4.20 * 0.14 + 3.75 * 0.57 + 1 + 1) = 543.2122917408561
p2 = (903.23 * 1.80 * 1 + 735.63 * 3.75 * 0.57 + 586.67 * 4.20 * 0.14) / max_coefficients = 228.8838515236599
score = 543.2122917408561 * 0.5 + 228.8838515236599 * 0.5 = 386.04807163225803
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-11 | 93 -> 99 | 406.02 -> 386.05 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-15 | 91 -> 93 | 406.02 | |
| 2024-09-06 | 85 -> 91 | 418.48 -> 406.02 |
IX Russian Riichi Championship: 29% -> 14% |
| 2024-09-03 | 88 -> 85 | 413.56 -> 418.48 | |
| 2024-09-01 | 79 -> 88 | 420.55 -> 413.56 | |
| 2024-08-26 | 80 -> 79 | 420.55 | |
| 2024-08-25 | 81 -> 80 | 420.55 | |
| 2024-08-18 | 82 -> 81 | 420.55 | |
| 2024-08-11 | 75 -> 82 | 437.52 -> 420.55 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 67 -> 75 | 443.64 -> 437.52 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 903 |
|
4/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 2 | 736 |
|
24/88 | 57% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 3 | 587 |
|
32/76 | 14% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 4 | 360 |
|
72/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |