Tsiporin Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 1, 2025 (latest changes Nov. 1, 2025).

42 place (600.23).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3

p1 = (126.32 * 3.85 * 0.71 + 258.43 * 3.75 * 0.86 + 452.38 * 2.60 * 1 + 745.10 * 3.05 * 1 + 525.42 * 3.25 * 1 + 210.53 * 1.50 * 1 + 597.01 * 4.10 * 1 + 961.04 * 3.45 * 1) / (3.85 * 0.71 + 3.75 * 0.86 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 1.50 * 1 + 4.10 * 1 + 3.45 * 1) = 519.0853292899861

p2 = (961.04 * 3.45 * 1 + 597.01 * 4.10 * 1 + 745.10 * 3.05 * 1 + 525.42 * 3.25 * 1) / max_coefficients = 681.365034965035

score = 519.0853292899861 * 0.5 + 681.365034965035 * 0.5 = 600.2251821275106

Rating changes

Show

all results
Date Place Points Reason
2025-11-01 45 -> 42 594.63 -> 600.23

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 47 -> 45 581.60 -> 594.63

Moscow Riichi 2024: 100% -> 86%
2025-10-04 48 -> 47 581.60
2025-09-14 49 -> 48 581.60
2025-09-12 52 -> 49 581.60
2025-09-01 59 -> 52 568.87 -> 581.60

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 91 -> 59 462.25 -> 568.87

SPB Riichi Open 2025: 0% -> 100%
2025-08-04 91 459.80 -> 462.25
2025-08-03 90 -> 91 459.80
2025-07-30 92 -> 90 459.80

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 961 2025-08-31 4/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 597 2025-06-15 28/68 100% 4.10 RR 13 bloody tiles Perm
3 211 2025-05-17 16/20 100% 1.50 CRR HaTiKo Korolyov
4 525 2025-02-16 29/60 100% 3.25 RR White Wolf Cup Saint Petersburg
5 745 2025-02-02 14/52 100% 3.05 RR Agari Winter Tournament 2025 Moscow
6 452 2025-01-26 24/43 100% 2.60 RR Riichi On Ice Samara
7 258 2024-10-13 67/90 86% 3.75 RR Moscow Riichi 2024 Moscow
8 126 2024-09-01 84/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg