Tsiporin Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

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

26 place (666.98).

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

p1 = (258.43 * 3.75 * 0.71 + 452.38 * 2.60 * 0.86 + 745.10 * 3.05 * 0.86 + 525.42 * 3.25 * 1 + 210.53 * 1.50 * 1 + 597.01 * 4.10 * 1 + 961.04 * 3.45 * 1 + 859.65 * 3.90 * 1 + 314.29 * 2.50 * 1) / (3.75 * 0.71 + 2.60 * 0.86 + 3.05 * 0.86 + 3.25 * 1 + 1.50 * 1 + 4.10 * 1 + 3.45 * 1 + 3.90 * 1 + 2.50 * 1) = 593.9169924839558

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 = 593.9169924839558 * 0.5 + 740.0515050167224 * 0.5 = 666.9842487503391

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 28 -> 26 660.63 -> 666.98

One tsumo until spring: 0% -> 100%
2026-02-02 25 -> 28 672.84 -> 660.63

Agari Winter Tournament 2025: 100% -> 86%
2026-02-01 27 -> 25 672.84
2026-01-26 29 -> 27 671.93 -> 672.84

Riichi On Ice: 100% -> 86%
2026-01-25 25 -> 29 671.93
2026-01-12 24 -> 25 671.93
2026-01-07 26 -> 24 671.93
2026-01-01 26 667.33 -> 671.93

SPB Riichi Open 2024: 71% -> 57%
2025-12-13 28 -> 26 664.31 -> 667.33

Moscow Riichi 2024: 86% -> 71%
2025-12-09 29 -> 28 664.31

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
5 211 2025-05-17 16/20 100% 1.50 CRR HaTiKo Korolyov
6 525 2025-02-16 29/60 100% 3.25 RR White Wolf Cup Saint Petersburg
7 745 2025-02-02 14/52 86% 3.05 RR Agari Winter Tournament 2025 Moscow
8 452 2025-01-26 24/43 86% 2.60 RR Riichi On Ice Samara
9 258 2024-10-13 67/90 71% 3.75 RR Moscow Riichi 2024 Moscow
10 126 2024-09-01 84/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg