Bogatov Aleksei
From Samara, Russia
Internal rating (RR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
167 place (210.95).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (556.96 * 3.65 * 0.71 + 238.10 * 2.60 * 1 + 157.14 * 3.50 * 1 + 0 + 0) / (3.65 * 0.71 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 244.8036110297795
p2 = (556.96 * 3.65 * 0.71 + 238.10 * 2.60 * 1 + 157.14 * 3.50 * 1) / max_coefficients = 177.10540540540538
score = 244.8036110297795 * 0.5 + 177.10540540540538 * 0.5 = 210.95450821759243
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-04 | 165 -> 167 | 228.01 -> 210.95 |
Riichi over Volga: 86% -> 71% |
| 2025-09-12 | 167 -> 165 | 228.01 | |
| 2025-09-03 | 173 -> 167 | 228.01 | |
| 2025-09-01 | 173 | 225.42 -> 228.01 | |
| 2025-08-31 | 170 -> 173 | 225.42 | |
| 2025-08-04 | 164 -> 170 | 240.55 -> 225.42 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 158 -> 164 | 240.55 | |
| 2025-07-30 | 161 -> 158 | 240.55 | |
| 2025-07-13 | 159 -> 161 | 240.55 | |
| 2025-07-12 | 160 -> 159 | 238.60 -> 240.55 |
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 | 71% | 3.65 | RR | Riichi over Volga | Samara |