Maniakhin Petr

From Saint Petersburg, Russia

EMA: 15990315

Player page

Common russian riichi rating (CRR)

Rating date June 30, 2026 (latest changes June 29, 2026).

107 place (444.71).

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

p1 = (494.74 * 3.85 * 0.29 + 169.49 * 3.25 * 0.57 + 885.71 * 1.90 * 0.71 + 584.42 * 3.45 * 1 + 540.54 * 3.40 * 1) / (3.85 * 0.29 + 3.25 * 0.57 + 1.90 * 0.71 + 3.45 * 1 + 3.40 * 1) = 529.8255624133108

p2 = (584.42 * 3.45 * 1 + 540.54 * 3.40 * 1 + 885.71 * 1.90 * 0.71 + 494.74 * 3.85 * 0.29) / max_coefficients = 359.5910135474836

score = 529.8255624133108 * 0.5 + 359.5910135474836 * 0.5 = 444.7082879803972

Rating changes

Show

all results
Date Place Points Reason
2026-06-27 109 -> 107 444.71
2026-06-26 105 -> 109 456.65 -> 444.71

Seihoku spring tournament 2025: 86% -> 71%
2026-06-16 109 -> 105 449.45 -> 456.65

White Wolf Cup: 71% -> 57%
2026-06-15 108 -> 109 442.65 -> 449.45
2026-06-14 87 -> 108 458.59 -> 442.65
2026-06-09 88 -> 87 458.59
2026-06-04 90 -> 88 458.59
2026-06-02 89 -> 90 458.59
2026-05-31 90 -> 89 458.59
2026-05-26 91 -> 90 458.59

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 541 2026-02-23 35/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 584 2025-08-31 33/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 886 2025-04-26 5/36 71% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
4 169 2025-02-16 50/60 57% 3.25 RR White Wolf Cup Saint Petersburg
5 495 2024-09-01 49/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 682 2023-09-03 35/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
7 627 2021-11-28 29/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
8 476 2019-11-24 34/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
9 513 2019-06-02 20/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
10 256 2018-12-23 30/40 0% 2.90 RR North Cup 2018 Saint Petersburg
11 304 2018-09-23 17/24 0% 2.50 RR West cup 2018 Saint Petersburg
12 408 2018-06-11 43/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
13 516 2018-03-04 16/32 0% 2.70 RR East Cup 2018 Saint Petersburg
14 60 2017-12-11 79/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg