Tsiporin Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Nov. 4, 2025 (latest changes Nov. 4, 2025).

23 place (674.46).

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

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 + 597.01 * 4.10 * 1 + 961.04 * 3.45 * 1 + 859.65 * 3.90 * 1) / (3.85 * 0.71 + 3.75 * 0.86 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 4.10 * 1 + 3.45 * 1 + 3.90 * 1) = 587.1488300224443

p2 = (859.65 * 3.90 * 1 + 961.04 * 3.45 * 1 + 597.01 * 4.10 * 1 + 745.10 * 3.05 * 1) / max_coefficients = 761.7739130434783

score = 587.1488300224443 * 0.5 + 761.7739130434783 * 0.5 = 674.4613715329613

Rating changes

Show

all results
Date Place Points Reason
2025-11-04 40 -> 23 610.55 -> 674.46

XI Russian Championship: 0% -> 100%
2025-11-01 42 -> 40 604.42 -> 610.55

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 46 -> 42 591.00 -> 604.42

Moscow Riichi 2024: 100% -> 86%
2025-10-09 45 -> 46 591.00
2025-10-04 48 -> 45 591.00
2025-09-12 49 -> 48 591.00
2025-09-01 52 -> 49 577.79 -> 591.00

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 79 -> 52 470.03 -> 577.79

SPB Riichi Open 2025: 0% -> 100%
2025-08-09 80 -> 79 470.03
2025-08-04 81 -> 80 467.58 -> 470.03

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 860 2025-11-04 9/58 100% 3.90 RR XI Russian Championship Moscow
2 961 2025-08-31 4/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 597 2025-06-15 28/68 100% 4.10 RR 13 bloody tiles Perm
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