Tsiporin Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).

26 place (658.56).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (126.32 * 3.85 * 0.57 + 258.43 * 3.75 * 0.71 + 452.38 * 2.60 * 0.86 + 745.10 * 3.05 * 0.86 + 525.42 * 3.25 * 1 + 597.01 * 4.10 * 1 + 961.04 * 3.45 * 1 + 859.65 * 3.90 * 1 + 314.29 * 2.50 * 1) / (3.85 * 0.57 + 3.75 * 0.71 + 2.60 * 0.86 + 3.05 * 0.86 + 3.25 * 1 + 4.10 * 1 + 3.45 * 1 + 3.90 * 1 + 2.50 * 1) = 577.0682731371231

p2 = (859.65 * 3.90 * 1 + 961.04 * 3.45 * 1 + 597.01 * 4.10 * 1 + 745.10 * 3.05 * 0.86) / max_coefficients = 740.0515050167224

score = 577.0682731371231 * 0.5 + 740.0515050167224 * 0.5 = 658.5598890769228

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 26 672.01 -> 658.56

One tsumo until spring: 0% -> 100%
2026-02-02 23 -> 26 684.11 -> 672.01

Agari Winter Tournament 2025: 100% -> 86%
2026-01-30 22 -> 23 684.11
2026-01-26 24 -> 22 682.97 -> 684.11

Riichi On Ice: 100% -> 86%
2026-01-25 19 -> 24 682.97
2026-01-12 20 -> 19 682.97
2026-01-07 21 -> 20 682.97
2026-01-01 23 -> 21 677.88 -> 682.97

SPB Riichi Open 2024: 71% -> 57%
2025-12-13 25 -> 23 674.46 -> 677.88

Moscow Riichi 2024: 86% -> 71%
2025-12-07 24 -> 25 674.46

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 314 2026-02-08 25/36 100% 2.50 RR One tsumo until spring Yekaterinburg
2 860 2025-11-04 9/58 100% 3.90 RR XI Russian Championship Moscow
3 961 2025-08-31 4/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 597 2025-06-15 28/68 100% 4.10 RR 13 bloody tiles Perm
5 525 2025-02-16 29/60 100% 3.25 RR White Wolf Cup Saint Petersburg
6 745 2025-02-02 14/52 86% 3.05 RR Agari Winter Tournament 2025 Moscow
7 452 2025-01-26 24/43 86% 2.60 RR Riichi On Ice Samara
8 258 2024-10-13 67/90 71% 3.75 RR Moscow Riichi 2024 Moscow
9 126 2024-09-01 84/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg