Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date May 28, 2023 (latest changes May 28, 2023).
61 place (331.05).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.10 * 0.57) = 12.52139
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 = 313.3406115455233
score = 348.752 * 0.5 + 313.3406115455233 * 0.5 = 331.0463057727617
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-05-28 | 63 -> 61 | 328.58 -> 331.05 | |
2023-05-20 | 64 -> 63 | 322.75 -> 328.58 | |
2023-05-06 | 65 -> 64 | 322.75 | |
2023-04-19 | 66 -> 65 | 320.08 -> 322.75 | |
2023-03-28 | 67 -> 66 | 317.42 -> 320.08 | |
2023-03-20 | 68 -> 67 | 312.39 -> 317.42 | |
2023-03-06 | 69 -> 68 | 312.39 | |
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 |
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 |