Naumov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Nov. 30, 2025 (latest changes Nov. 30, 2025).
274 place (56.90).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (347.83 * 2.10 * 0.29 + 137.25 * 3.05 * 0.57 + 0 + 0 + 0) / (2.10 * 0.29 + 3.05 * 0.57 + 1 + 1 + 1) = 83.83151716160621
p2 = (137.25 * 3.05 * 0.57 + 347.83 * 2.10 * 0.29) / max_coefficients = 29.959197324414717
score = 83.83151716160621 * 0.5 + 29.959197324414717 * 0.5 = 56.895357243010466
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-30 | 273 -> 274 | 67.40 -> 56.90 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-25 | 274 -> 273 | 67.40 | |
| 2025-11-10 | 275 -> 274 | 67.40 | |
| 2025-11-04 | 270 -> 275 | 68.24 -> 67.40 | |
| 2025-11-01 | 270 | 68.18 -> 68.24 | |
| 2025-10-22 | 260 -> 270 | 104.79 -> 68.18 |
Mushroom League: 14% -> 0% |
| 2025-10-13 | 260 | 103.97 -> 104.79 | |
| 2025-10-09 | 259 -> 260 | 105.24 -> 103.97 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-09-30 | 257 -> 259 | 113.87 -> 105.24 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-12 | 258 -> 257 | 113.87 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 137 |
|
45/52 | 57% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 2 | 348 |
|
31/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 3 | 727 |
|
7/23 | 0% | 2.10 | CRR | Mushroom League | Moscow |