Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).
51 place (446.11).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
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 = 403.1464711211874
score = 489.0650626415146 * 0.5 + 403.1464711211874 * 0.5 = 446.105766881351
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-11-20 | 53 -> 51 | 446.11 | |
2023-11-06 | 50 -> 53 | 452.23 -> 446.11 |
IX Russian Riichi Championship: 100% -> 86% |
2023-11-05 | 48 -> 50 | 452.23 | |
2023-10-27 | 49 -> 48 | 452.23 | |
2023-10-12 | 50 -> 49 | 454.96 -> 452.23 |
Moscow Riichi 2022: 71% -> 57% |
2023-09-28 | 51 -> 50 | 454.96 | |
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 |
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 |