Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date March 9, 2024 (latest changes March 9, 2024).
59 place (421.86).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 2.90 * 1 + 4.20 * 0.57) = 13.04988
p1 = (360.36 * 4.05 * 0.29 + 586.67 * 4.20 * 0.57 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.57 + 3.75 * 1 + 1 + 1) = 492.4827803693256
p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 0.57 + 360.36 * 4.05 * 0.29) / max_coefficients = 351.2308159155487
score = 492.4827803693256 * 0.5 + 351.2308159155487 * 0.5 = 421.8567981424371
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-03-06 | 54 -> 59 | 429.89 -> 421.86 |
IX Russian Riichi Championship: 71% -> 57% |
2024-02-25 | 52 -> 54 | 429.89 | |
2024-02-12 | 52 | 433.72 -> 429.89 |
Moscow Riichi 2022: 43% -> 29% |
2024-01-20 | 54 -> 52 | 433.72 | |
2024-01-06 | 51 -> 54 | 440.73 -> 433.72 |
IX Russian Riichi Championship: 86% -> 71% |
2023-12-19 | 52 -> 51 | 440.73 | |
2023-12-12 | 53 -> 52 | 444.69 -> 440.73 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 55 -> 53 | 444.69 | |
2023-11-26 | 51 -> 55 | 446.11 -> 444.69 | |
2023-11-20 | 53 -> 51 | 446.11 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 736 |
|
24/88 | 100% | 3.75 | RR | Money can not buy tenpai |
2 | 587 |
|
32/76 | 57% | 4.20 | RR | IX Russian Riichi Championship |
3 | 360 |
|
72/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |