Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date April 4, 2026 (latest changes April 4, 2026).
96 place (454.14).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (903.23 * 1.80 * 0.14 + 370.79 * 3.75 * 0.57 + 516.13 * 3.10 * 0.71 + 766.67 * 3 * 1 + 450.98 * 2.30 * 1) / (1.80 * 0.14 + 3.75 * 0.57 + 3.10 * 0.71 + 3 * 1 + 2.30 * 1) = 555.4562601494811
p2 = (766.67 * 3 * 1 + 516.13 * 3.10 * 0.71 + 450.98 * 2.30 * 1 + 370.79 * 3.75 * 0.57) / max_coefficients = 352.8180602006689
score = 555.4562601494811 * 0.5 + 352.8180602006689 * 0.5 = 454.137160175075
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-29 | 97 -> 96 | 454.14 | |
| 2026-03-21 | 96 -> 97 | 454.14 | |
| 2026-03-19 | 94 -> 96 | 458.53 -> 454.14 |
"Green Dragon" in the Secret Chamber: 29% -> 14% |
| 2026-03-15 | 95 -> 94 | 458.53 | |
| 2026-03-14 | 102 -> 95 | 422.26 -> 458.53 |
"Furin" club tournament: for the anniversary: 0% -> 100% |
| 2026-03-12 | 105 -> 102 | 422.26 | |
| 2026-03-10 | 106 -> 105 | 422.26 | |
| 2026-03-07 | 104 -> 106 | 429.57 -> 422.26 |
Moscow Open Riichi Marathon: 86% -> 71% |
| 2026-03-02 | 103 -> 104 | 429.57 | |
| 2026-03-01 | 105 -> 103 | 429.57 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 451 |
|
29/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 2 | 767 |
|
8/31 | 100% | 3.00 | RR | Moscow Open Riichi Marathon 2026 | Moscow | |
| 3 | 516 |
|
16/32 | 71% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 4 | 371 |
|
57/90 | 57% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 5 | 903 |
|
4/32 | 14% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 6 | 736 |
|
24/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 7 | 587 |
|
32/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 8 | 360 |
|
72/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |