Bogatov Aleksei
From Samara, Russia
Common russian riichi rating (CRR)
Rating date May 12, 2025 (latest changes May 12, 2025).
191 place (241.63).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (556.96 * 3.65 * 1 + 238.10 * 2.60 * 1 + 157.14 * 3.50 * 1 + 0 + 0) / (3.65 * 1 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 272.5072340425532
p2 = (556.96 * 3.65 * 1 + 238.10 * 2.60 * 1 + 157.14 * 3.50 * 1) / max_coefficients = 210.75703662163176
score = 272.5072340425532 * 0.5 + 210.75703662163176 * 0.5 = 241.63213533209247
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-12 | 191 | 237.26 -> 241.63 | |
| 2025-05-05 | 192 -> 191 | 237.26 | |
| 2025-05-03 | 192 | 227.01 -> 237.26 |
Riichi over The Volga 2025: 0% -> 100% |
| 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 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 157 |
|
60/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
| 2 | 238 |
|
33/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
| 3 | 557 |
|
36/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |