Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Dec. 21, 2024 (latest changes Dec. 18, 2024).
108 place (361.70).
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 * 0.43 + 903.23 * 1.80 * 1 + 370.79 * 3.75 * 1 + 0 + 0) / (3.75 * 0.43 + 1.80 * 1 + 3.75 * 1 + 1 + 1) = 458.5000955527041
p2 = (903.23 * 1.80 * 1 + 370.79 * 3.75 * 1 + 735.63 * 3.75 * 0.43) / max_coefficients = 264.8958990536278
score = 458.5000955527041 * 0.5 + 264.8958990536278 * 0.5 = 361.69799730316595
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-12-18 | 110 -> 108 | 361.70 | |
| 2024-12-11 | 104 -> 110 | 381.78 -> 361.70 |
Money can not buy tenpai: 57% -> 43% |
| 2024-12-01 | 103 -> 104 | 381.78 | |
| 2024-11-05 | 93 -> 103 | 422.03 -> 381.78 | |
| 2024-11-04 | 92 -> 93 | 422.03 | |
| 2024-11-03 | 93 -> 92 | 422.03 | |
| 2024-10-13 | 98 -> 93 | 386.05 -> 422.03 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-10-11 | 93 -> 98 | 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% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 371 |
|
57/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 2 | 903 |
|
4/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
| 3 | 736 |
|
24/88 | 43% | 3.75 | RR | Money can not buy tenpai |
| 4 | 587 |
|
32/76 | 0% | 4.20 | RR | IX Russian Riichi Championship |
| 5 | 360 |
|
72/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |