Tsiporin Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date July 5, 2026 (latest changes July 3, 2026).

31 place (643.10).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (126.32 * 3.85 * 0.14 + 258.43 * 3.75 * 0.29 + 452.38 * 2.60 * 0.57 + 745.10 * 3.05 * 0.57 + 525.42 * 3.25 * 0.57 + 597.01 * 4.10 * 0.86 + 961.04 * 3.45 * 1 + 859.65 * 3.90 * 1 + 314.29 * 2.50 * 1) / (3.85 * 0.14 + 3.75 * 0.29 + 2.60 * 0.57 + 3.05 * 0.57 + 3.25 * 0.57 + 4.10 * 0.86 + 3.45 * 1 + 3.90 * 1 + 2.50 * 1) = 639.9551395015026

p2 = (859.65 * 3.90 * 1 + 961.04 * 3.45 * 1 + 597.01 * 4.10 * 0.86 + 745.10 * 3.05 * 0.57) / max_coefficients = 646.2468802390636

score = 639.9551395015026 * 0.5 + 646.2468802390636 * 0.5 = 643.1010098702831

Rating changes

Show

all results
Date Place Points Reason
2026-07-03 34 -> 31 643.10
2026-07-01 35 -> 34 636.25 -> 643.10

SPB Riichi Open 2024: 29% -> 14%
2026-06-16 38 -> 35 635.14 -> 636.25

White Wolf Cup: 71% -> 57%
2026-06-15 35 -> 38 633.89 -> 635.14

13 bloody tiles: 100% -> 86%
2026-06-14 24 -> 35 662.31 -> 633.89
2026-06-13 24 657.91 -> 662.31

Moscow Riichi 2024: 43% -> 29%
2026-06-09 25 -> 24 657.91
2026-06-02 21 -> 25 670.10 -> 657.91

Agari Winter Tournament 2025: 71% -> 57%
2026-05-26 22 -> 21 668.77 -> 670.10

Riichi On Ice: 71% -> 57%
2026-05-17 21 -> 22 668.77

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 203 2026-02-23 60/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 314 2026-02-08 25/36 100% 2.50 RR One tsumo until spring Yekaterinburg
3 860 2025-11-04 9/58 100% 3.90 RR XI Russian Championship Moscow
4 961 2025-08-31 4/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
5 597 2025-06-15 28/68 86% 4.10 RR 13 bloody tiles Perm
6 525 2025-02-16 29/60 57% 3.25 RR White Wolf Cup Saint Petersburg
7 745 2025-02-02 14/52 57% 3.05 RR Agari Winter Tournament 2025 Moscow
8 452 2025-01-26 24/43 57% 2.60 RR Riichi On Ice Samara
9 258 2024-10-13 67/90 29% 3.75 RR Moscow Riichi 2024 Moscow
10 126 2024-09-01 84/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg