Tsiporin Aleksandr
From Moscow, Russia
Internal rating (RR)
Rating date Feb. 3, 2025 (latest changes Feb. 3, 2025).
112 place (326.78).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (452.38 * 2.60 * 1 + 126.32 * 3.85 * 1 + 745.10 * 3.05 * 1 + 258.43 * 3.75 * 1 + 0) / (2.60 * 1 + 3.85 * 1 + 3.05 * 1 + 3.75 * 1 + 1) = 344.1515789473685
p2 = (745.10 * 3.05 * 1 + 452.38 * 2.60 * 1 + 258.43 * 3.75 * 1 + 126.32 * 3.85 * 1) / max_coefficients = 309.41072555205045
score = 344.1515789473685 * 0.5 + 309.41072555205045 * 0.5 = 326.78115224970946
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-02 | 147 -> 112 | 190.87 -> 326.78 |
Agari Winter Tournament 2025: 0% -> 100% |
| 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 | 745 |
|
14/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 |
| 2 | 452 |
|
24/43 | 100% | 2.60 | RR | Riichi On Ice |
| 3 | 258 |
|
67/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 4 | 126 |
|
84/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |