Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Sept. 20, 2023 (latest changes Sept. 20, 2023).
51 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 | 50 -> 51 | 454.96 | |
2023-09-03 | 36 -> 50 | 473.52 -> 454.96 | |
2023-08-27 | 35 -> 36 | 473.52 | |
2023-08-26 | 34 -> 35 | 473.52 | |
2023-08-19 | 35 -> 34 | 473.52 | |
2023-08-12 | 37 -> 35 | 468.77 -> 473.52 |
Moscow Riichi 2022: 86% -> 71% |
2023-07-28 | 39 -> 37 | 468.77 | |
2023-07-03 | 40 -> 39 | 468.77 | |
2023-06-19 | 39 -> 40 | 468.77 | |
2023-06-12 | 43 -> 39 | 464.39 -> 468.77 |
Moscow Riichi 2022: 100% -> 86% |
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 |