Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 20, 2023 (latest changes Sept. 20, 2023).
41 place (454.96).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (360.36 * 4.05 * 0.71 + 586.67 * 4.20 * 1 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.71 + 4.20 * 1 + 3.75 * 1 + 1 + 1) = 487.8261671902368
p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 1 + 360.36 * 4.05 * 0.71) / max_coefficients = 422.09431233689605
score = 487.8261671902368 * 0.5 + 422.09431233689605 * 0.5 = 454.9602397635664
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2023-07-06 | 32 -> 33 | 473.67 | |
2023-06-19 | 33 -> 32 | 473.67 | |
2023-06-12 | 37 -> 33 | 469.06 -> 473.67 |
Moscow Riichi 2022: 100% -> 86% |
2023-06-11 | 61 -> 37 | 331.05 -> 469.06 |
Money can not buy tenpai: 0% -> 100% |
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 | 100% | 4.20 | RR | IX Russian Riichi Championship |
3 | 360 |
|
72/112 | 71% | 4.05 | RR | Moscow Riichi 2022 |