Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Feb. 16, 2025 (latest changes Feb. 16, 2025).
97 place (422.52).
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 * 0.29 + 903.23 * 1.80 * 1 + 370.79 * 3.75 * 1 + 516.13 * 3.10 * 1 + 0) / (3.75 * 0.29 + 1.80 * 1 + 3.75 * 1 + 3.10 * 1 + 1) = 504.0771356285924
p2 = (903.23 * 1.80 * 1 + 516.13 * 3.10 * 1 + 370.79 * 3.75 * 1 + 735.63 * 3.75 * 0.29) / max_coefficients = 340.9716088328076
score = 504.0771356285924 * 0.5 + 340.9716088328076 * 0.5 = 422.5243722307
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-16 | 92 -> 97 | 422.52 | |
| 2025-02-11 | 85 -> 92 | 440.47 -> 422.52 |
Money can not buy tenpai: 43% -> 29% |
| 2025-02-02 | 82 -> 85 | 440.47 | |
| 2025-01-26 | 80 -> 82 | 440.47 | |
| 2025-01-07 | 108 -> 80 | 361.70 -> 440.47 |
Moscow Open Riichi Marathon: 0% -> 100% |
| 2025-01-03 | 109 -> 108 | 361.70 | |
| 2024-12-18 | 111 -> 109 | 361.70 | |
| 2024-12-11 | 105 -> 111 | 381.78 -> 361.70 |
Money can not buy tenpai: 57% -> 43% |
| 2024-12-01 | 104 -> 105 | 381.78 | |
| 2024-11-05 | 93 -> 104 | 422.03 -> 381.78 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 516 |
|
16/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon |
| 2 | 371 |
|
57/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 3 | 903 |
|
4/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
| 4 | 736 |
|
24/88 | 29% | 3.75 | RR | Money can not buy tenpai |
| 5 | 587 |
|
32/76 | 0% | 4.20 | RR | IX Russian Riichi Championship |
| 6 | 360 |
|
72/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |