Tsiporin Aleksandr
From Moscow, Russia
Internal rating (RR)
Rating date Jan. 26, 2025 (latest changes Jan. 26, 2025).
147 place (190.87).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (126.32 * 3.85 * 1 + 258.43 * 3.75 * 1 + 452.38 * 2.60 * 1 + 0 + 0) / (3.85 * 1 + 3.75 * 1 + 2.60 * 1 + 1 + 1) = 215.70573770491805
p2 = (452.38 * 2.60 * 1 + 258.43 * 3.75 * 1 + 126.32 * 3.85 * 1) / max_coefficients = 166.03217665615142
score = 215.70573770491805 * 0.5 + 166.03217665615142 * 0.5 = 190.86895718053472
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-26 | 157 -> 147 | 114.56 -> 190.87 |
Riichi On Ice: 0% -> 100% |
| 2025-01-07 | 154 -> 157 | 114.56 | |
| 2025-01-03 | 155 -> 154 | 114.56 | |
| 2024-11-06 | 162 -> 155 | 114.56 | |
| 2024-10-13 | 162 | 114.56 |
Moscow Riichi 2024: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 452 |
|
24/43 | 100% | 2.60 | RR | Riichi On Ice |
| 2 | 258 |
|
67/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 3 | 126 |
|
84/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |