Medvedev Sergei
From Moscow, Russia
Internal rating (RR)
Rating date May 6, 2024 (latest changes May 6, 2024).
48 place (403.41).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.10 * 1) = 12.9
p1 = (360.36 * 4.05 * 0.14 + 586.67 * 4.20 * 0.43 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.14 + 4.20 * 0.43 + 3.75 * 1 + 1 + 1) = 494.9337945703367
p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 0.43 + 360.36 * 4.05 * 0.14) / max_coefficients = 311.8798449612403
score = 494.9337945703367 * 0.5 + 311.8798449612403 * 0.5 = 403.4068197657885
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-05-06 | 45 -> 48 | 416.34 -> 403.41 |
IX Russian Riichi Championship: 57% -> 43% |
2024-04-12 | 43 -> 45 | 419.86 -> 416.34 |
Moscow Riichi 2022: 29% -> 14% |
2024-03-30 | 40 -> 43 | 419.86 | |
2024-03-20 | 45 -> 40 | 419.86 | |
2024-03-10 | 34 -> 45 | 448.93 -> 419.86 | |
2024-03-06 | 32 -> 34 | 456.35 -> 448.93 |
IX Russian Riichi Championship: 71% -> 57% |
2024-02-12 | 34 -> 32 | 451.29 -> 456.35 |
Moscow Riichi 2022: 43% -> 29% |
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 |
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 | 43% | 4.20 | RR | IX Russian Riichi Championship |
3 | 360 |
|
72/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |