Tsiporin Aleksandr
From Moscow, Russia
Internal rating (RR)
Rating date May 5, 2026 (latest changes May 3, 2026).
23 place (668.77).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (126.32 * 3.85 * 0.29 + 258.43 * 3.75 * 0.43 + 452.38 * 2.60 * 0.71 + 745.10 * 3.05 * 0.71 + 525.42 * 3.25 * 0.71 + 597.01 * 4.10 * 1 + 961.04 * 3.45 * 1 + 859.65 * 3.90 * 1 + 314.29 * 2.50 * 1) / (3.85 * 0.29 + 3.75 * 0.43 + 2.60 * 0.71 + 3.05 * 0.71 + 3.25 * 0.71 + 4.10 * 1 + 3.45 * 1 + 3.90 * 1 + 2.50 * 1) = 614.360142632036
p2 = (859.65 * 3.90 * 1 + 961.04 * 3.45 * 1 + 597.01 * 4.10 * 1 + 745.10 * 3.05 * 0.71) / max_coefficients = 723.1818181818184
score = 614.360142632036 * 0.5 + 723.1818181818184 * 0.5 = 668.7709804069272
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-03 | 25 -> 23 | 666.35 -> 668.77 | |
| 2026-05-01 | 26 -> 25 | 660.66 -> 666.35 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-16 | 27 -> 26 | 659.91 -> 660.66 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 29 -> 27 | 656.17 -> 659.91 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 28 -> 29 | 656.17 | |
| 2026-04-05 | 27 -> 28 | 656.17 | |
| 2026-04-04 | 28 -> 27 | 656.17 | |
| 2026-04-02 | 26 -> 28 | 668.34 -> 656.17 |
Agari Winter Tournament 2025: 86% -> 71% |
| 2026-03-26 | 28 -> 26 | 667.28 -> 668.34 |
Riichi On Ice: 86% -> 71% |
| 2026-03-10 | 29 -> 28 | 667.28 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 203 |
|
60/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 2 | 314 |
|
25/36 | 100% | 2.50 | RR | One tsumo until spring | Yekaterinburg | |
| 3 | 860 |
|
9/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 4 | 961 |
|
4/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 5 | 597 |
|
28/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 6 | 525 |
|
29/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 7 | 745 |
|
14/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 8 | 452 |
|
24/43 | 71% | 2.60 | RR | Riichi On Ice | Samara | |
| 9 | 258 |
|
67/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 10 | 126 |
|
84/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |