Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).
37 place (453.27).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002
p1 = (360.36 * 4.05 * 0.57 + 586.67 * 4.20 * 0.86 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.57 + 4.20 * 0.86 + 3.75 * 1 + 1 + 1) = 489.0650626415146
p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 0.86 + 360.36 * 4.05 * 0.57) / max_coefficients = 417.48054558002457
score = 489.0650626415146 * 0.5 + 417.48054558002457 * 0.5 = 453.2728041107696
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2023-09-03 | 28 -> 42 | 487.83 -> 454.96 | |
2023-08-19 | 30 -> 28 | 487.83 | |
2023-08-12 | 32 -> 30 | 482.34 -> 487.83 |
Moscow Riichi 2022: 86% -> 71% |
2023-07-28 | 33 -> 32 | 482.34 | |
2023-07-20 | 33 | 473.67 -> 482.34 |
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 | 86% | 4.20 | RR | IX Russian Riichi Championship |
3 | 360 |
|
72/112 | 57% | 4.05 | RR | Moscow Riichi 2022 |