Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date Jan. 20, 2024 (latest changes Jan. 20, 2024).
34 place (451.29).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001
p1 = (360.36 * 4.05 * 0.43 + 586.67 * 4.20 * 0.71 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.71 + 3.75 * 1 + 1 + 1) = 490.5811523866834
p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 0.71 + 360.36 * 4.05 * 0.43) / max_coefficients = 411.99946499608757
score = 490.5811523866834 * 0.5 + 411.99946499608757 * 0.5 = 451.29030869138546
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-01-20 | 36 -> 34 | 451.29 | |
2024-01-06 | 34 -> 36 | 457.89 -> 451.29 |
IX Russian Riichi Championship: 86% -> 71% |
2023-12-19 | 36 -> 34 | 457.89 | |
2023-12-12 | 36 | 453.27 -> 457.89 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 37 -> 36 | 453.27 | |
2023-11-20 | 38 -> 37 | 453.27 | |
2023-11-06 | 40 -> 38 | 459.22 -> 453.27 |
IX Russian Riichi Championship: 100% -> 86% |
2023-10-12 | 40 | 454.96 -> 459.22 |
Moscow Riichi 2022: 71% -> 57% |
2023-09-28 | 41 -> 40 | 454.96 | |
2023-09-06 | 42 -> 41 | 454.96 |
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 | 71% | 4.20 | RR | IX Russian Riichi Championship |
3 | 360 |
|
72/112 | 43% | 4.05 | RR | Moscow Riichi 2022 |