Ryazanov Aleksandr
From Samara, Russia
EMA: 15990057
Internal rating (RR)
Rating date Jan. 1, 2026 (latest changes Jan. 1, 2026).
124 place (323.22).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (569.62 * 3.65 * 0.57 + 719.10 * 3.75 * 0.71 + 23.81 * 2.60 * 1 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.57 + 3.75 * 0.71 + 2.60 * 1 + 3.50 * 1 + 1) = 360.42020408395484
p2 = (719.10 * 3.75 * 0.71 + 569.62 * 3.65 * 0.57 + 314.29 * 3.50 * 1 + 23.81 * 2.60 * 1) / max_coefficients = 286.02742474916386
score = 360.42020408395484 * 0.5 + 286.02742474916386 * 0.5 = 323.2238144165593
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-01 | 126 -> 124 | 323.22 | |
| 2025-12-13 | 118 -> 126 | 343.85 -> 323.22 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 119 -> 118 | 343.85 | |
| 2025-12-07 | 117 -> 119 | 343.85 | |
| 2025-12-04 | 114 -> 117 | 357.69 -> 343.85 |
Riichi over Volga: 71% -> 57% |
| 2025-11-30 | 113 -> 114 | 357.69 | |
| 2025-11-14 | 114 -> 113 | 357.69 | |
| 2025-11-10 | 115 -> 114 | 357.69 | |
| 2025-11-04 | 111 -> 115 | 365.23 -> 357.69 | |
| 2025-11-01 | 111 | 364.63 -> 365.23 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 314 |
|
49/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 2 | 24 |
|
42/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 3 | 719 |
|
26/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 570 |
|
35/80 | 57% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 486 |
|
19/36 | 0% | 0.90 | EMA | Moscow Riichi 2011 | Moscow |