Tsiporin Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date June 15, 2025 (latest changes June 15, 2025).
92 place (455.17).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (525.42 * 3.25 * 1 + 745.10 * 3.05 * 1 + 258.43 * 3.75 * 1 + 452.38 * 2.60 * 1 + 597.01 * 4.10 * 1 + 126.32 * 3.85 * 1 + 210.53 * 1.50 * 1) / (3.25 * 1 + 3.05 * 1 + 3.75 * 1 + 2.60 * 1 + 4.10 * 1 + 3.85 * 1 + 1.50 * 1) = 424.2235294117648
p2 = (597.01 * 4.10 * 1 + 745.10 * 3.05 * 1 + 525.42 * 3.25 * 1 + 452.38 * 2.60 * 1) / max_coefficients = 486.11489350276753
score = 424.2235294117648 * 0.5 + 486.11489350276753 * 0.5 = 455.16921145726616
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-15 | 113 -> 92 | 394.03 -> 455.17 |
13 bloody tiles: 0% -> 100% |
| 2025-06-14 | 111 -> 113 | 394.03 | |
| 2025-06-11 | 112 -> 111 | 394.03 | |
| 2025-05-19 | 113 -> 112 | 394.03 | |
| 2025-05-17 | 105 -> 113 | 401.95 -> 394.03 |
HaTiKo: 0% -> 100% |
| 2025-05-12 | 107 -> 105 | 393.59 -> 401.95 | |
| 2025-05-03 | 106 -> 107 | 393.59 | |
| 2025-04-27 | 103 -> 106 | 393.59 | |
| 2025-04-26 | 101 -> 103 | 393.59 | |
| 2025-04-25 | 102 -> 101 | 393.59 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 597 |
|
28/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm |
| 2 | 211 |
|
16/20 | 100% | 1.50 | CRR | HaTiKo | Korolyov |
| 3 | 525 |
|
29/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
| 4 | 745 |
|
14/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow |
| 5 | 452 |
|
24/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
| 6 | 258 |
|
67/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
| 7 | 126 |
|
84/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |