Bogatov Aleksei
From Samara, Russia
Common russian riichi rating (CRR)
Rating date May 1, 2025 (latest changes May 1, 2025).
192 place (227.01).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (556.96 * 3.65 * 1 + 238.10 * 2.60 * 1 + 0 + 0 + 0) / (3.65 * 1 + 2.60 * 1 + 1 + 1 + 1) = 286.6983783783784
p2 = (556.96 * 3.65 * 1 + 238.10 * 2.60 * 1) / max_coefficients = 167.31608832807572
score = 286.6983783783784 * 0.5 + 167.31608832807572 * 0.5 = 227.00723335322704
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-04-27 | 189 -> 192 | 227.01 | |
| 2025-04-26 | 188 -> 189 | 227.01 | |
| 2025-04-25 | 189 -> 188 | 227.01 | |
| 2025-04-22 | 190 -> 189 | 227.01 | |
| 2025-04-13 | 187 -> 190 | 227.01 | |
| 2025-04-11 | 188 -> 187 | 227.01 | |
| 2025-03-30 | 189 -> 188 | 227.01 | |
| 2025-03-29 | 187 -> 189 | 227.01 | |
| 2025-03-23 | 181 -> 187 | 227.01 | |
| 2025-03-10 | 182 -> 181 | 227.01 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 238 |
|
33/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
| 2 | 557 |
|
36/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |