Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date Feb. 19, 2023 (latest changes Feb. 19, 2023).
69 place (312.39).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.71) = 14.214335
p1 = (360.36 * 4.05 * 1 + 586.67 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 1 + 4.20 * 1 + 1 + 1 + 1) = 348.752
p2 = (586.67 * 4.20 * 1 + 360.36 * 4.05 * 1) / max_coefficients = 276.0213544988211
score = 348.752 * 0.5 + 276.0213544988211 * 0.5 = 312.3866772494106
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-02-19 | 70 -> 69 | 310.54 -> 312.39 | |
2023-01-28 | 73 -> 70 | 307.76 -> 310.54 | |
2022-12-19 | 73 | 306.48 -> 307.76 | |
2022-11-28 | 73 | 303.44 -> 306.48 | |
2022-11-06 | 73 | 303.44 |
IX Russian Riichi Championship: 0% -> 100% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 587 |
|
32/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
2 | 360 |
|
72/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |