Tsiporin Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Aug. 14, 2026 (latest changes Aug. 13, 2026).

35 place (638.83).

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 * 0.14 + 452.38 * 2.60 * 0.43 + 745.10 * 3.05 * 0.43 + 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 * 0.14 + 2.60 * 0.43 + 3.05 * 0.43 + 3.25 * 0.57 + 4.10 * 0.86 + 3.45 * 1 + 3.90 * 1 + 2.50 * 1) = 652.1371642268401

p2 = (859.65 * 3.90 * 1 + 961.04 * 3.45 * 1 + 597.01 * 4.10 * 0.86 + 525.42 * 3.25 * 0.57) / max_coefficients = 625.5208162777842

score = 652.1371642268401 * 0.5 + 625.5208162777842 * 0.5 = 638.8289902523122

Rating changes

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all results
Date Place Points Reason
2026-08-13 35 633.36 -> 638.83

Moscow Riichi 2024: 29% -> 14%
2026-08-04 36 -> 35 633.36
2026-08-03 37 -> 36 633.36
2026-08-02 33 -> 37 644.87 -> 633.36

Agari Winter Tournament 2025: 57% -> 43%
2026-07-26 34 -> 33 643.10 -> 644.87

Riichi On Ice: 57% -> 43%
2026-07-12 33 -> 34 643.10
2026-07-07 31 -> 33 643.10
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%

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 43% 3.05 RR Agari Winter Tournament 2025 Moscow
8 452 2025-01-26 24/43 43% 2.60 RR Riichi On Ice Samara
9 258 2024-10-13 67/90 14% 3.75 RR Moscow Riichi 2024 Moscow
10 126 2024-09-01 84/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg