Maniakhin Petr

From Saint Petersburg, Russia

EMA: 15990315

Player page

Internal rating (RR)

Rating date Nov. 3, 2026 (latest changes Nov. 3, 2026).

88 place (468.40).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (169.49 * 3.25 * 0.29 + 885.71 * 1.90 * 0.43 + 584.42 * 3.45 * 0.71 + 540.54 * 3.40 * 1 + 742.86 * 1.90 * 1) / (3.25 * 0.29 + 1.90 * 0.43 + 3.45 * 0.71 + 3.40 * 1 + 1.90 * 1) = 585.6740154830023

p2 = (540.54 * 3.40 * 1 + 584.42 * 3.45 * 0.71 + 742.86 * 1.90 * 1 + 885.71 * 1.90 * 0.43) / max_coefficients = 351.1187540558079

score = 585.6740154830023 * 0.5 + 351.1187540558079 * 0.5 = 468.39638476940513

Rating changes

Show

all results
Date Place Points Reason
2026-10-31 114 -> 88 388.42 -> 468.40

Seihoku autumn tournament 2026: 0% -> 100%

SPB Riichi Open 2025: 86% -> 71%
2026-10-26 109 -> 114 401.97 -> 388.42

Seihoku spring tournament 2025: 57% -> 43%
2026-10-16 111 -> 109 396.72 -> 401.97

White Wolf Cup: 43% -> 29%
2026-10-15 112 -> 111 396.72
2026-10-13 115 -> 112 396.72
2026-10-03 116 -> 115 396.72
2026-10-02 117 -> 116 396.72
2026-09-07 118 -> 117 396.72
2026-09-06 116 -> 118 396.72
2026-09-01 103 -> 116 424.00 -> 396.72

SPB Riichi Open 2024: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 743 2026-10-31 10/36 100% 1.90 RR Seihoku autumn tournament 2026 Saint Petersburg
2 541 2026-02-23 35/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 584 2025-08-31 33/78 71% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 886 2025-04-26 5/36 43% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
5 169 2025-02-16 50/60 29% 3.25 RR White Wolf Cup Saint Petersburg
6 495 2024-09-01 49/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 682 2023-09-03 35/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 627 2021-11-28 29/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
9 476 2019-11-24 34/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
10 513 2019-06-02 20/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg
11 256 2018-12-23 30/40 0% 2.90 RR North Cup 2018 Saint Petersburg
12 304 2018-09-23 17/24 0% 2.50 RR West cup 2018 Saint Petersburg
13 408 2018-06-11 43/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
14 516 2018-03-04 16/32 0% 2.70 RR East Cup 2018 Saint Petersburg
15 60 2017-12-11 79/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg