Naumov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date March 30, 2025 (latest changes March 30, 2025).
209 place (179.58).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (727.27 * 2.10 * 0.57 + 347.83 * 2.10 * 0.86 + 137.25 * 3.05 * 1 + 0 + 0) / (2.10 * 0.57 + 2.10 * 0.86 + 3.05 * 1 + 1 + 1) = 238.18704696360803
p2 = (727.27 * 2.10 * 0.57 + 347.83 * 2.10 * 0.86 + 137.25 * 3.05 * 1) / max_coefficients = 120.96971608832807
score = 238.18704696360803 * 0.5 + 120.96971608832807 * 0.5 = 179.57838152596804
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-30 | 207 -> 209 | 184.84 -> 179.58 |
Seihoku spring tournament 2024: 100% -> 86% |
| 2025-03-29 | 204 -> 207 | 184.84 | |
| 2025-03-23 | 196 -> 204 | 184.84 | |
| 2025-03-03 | 197 -> 196 | 184.84 | |
| 2025-03-02 | 196 -> 197 | 184.84 | |
| 2025-02-25 | 197 -> 196 | 184.84 | |
| 2025-02-22 | 197 | 200.14 -> 184.84 |
Mushroom League: 71% -> 57% |
| 2025-02-16 | 190 -> 197 | 200.14 | |
| 2025-02-02 | 184 -> 190 | 200.14 | |
| 2025-01-26 | 176 -> 184 | 200.14 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 137 |
|
45/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 2 | 348 |
|
31/47 | 86% | 2.10 | RR | Seihoku spring tournament 2024 |
| 3 | 727 |
|
7/23 | 57% | 2.10 | CRR | Mushroom League |