Maniakhin Petr

From Saint Petersburg, Russia

EMA: 15990315

Player page

Internal rating (RR)

Rating date Nov. 3, 2024 (latest changes Nov. 3, 2024).

107 place (320.09).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (682.24 * 4 * 0.71 + 494.74 * 3.85 * 1 + 0 + 0 + 0) / (4 * 0.71 + 3.85 * 1 + 1 + 1 + 1) = 397.02900939508817

p2 = (682.24 * 4 * 0.71 + 494.74 * 3.85 * 1) / max_coefficients = 243.15709779179812

score = 397.02900939508817 * 0.5 + 243.15709779179812 * 0.5 = 320.09305359344313

Rating changes

Show

all results
Date Place Points Reason
2024-11-03 106 -> 107 340.31 -> 320.09

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 95 -> 106 343.08 -> 340.31
2024-10-11 98 -> 95 343.08
2024-09-06 99 -> 98 343.08
2024-09-03 93 -> 99 357.44 -> 343.08

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 77 -> 93 313.88 -> 357.44

SPB Riichi Open 2024: 0% -> 100%
2023-11-06 83 -> 77 309.20 -> 313.88
2023-10-12 87 -> 83 305.05 -> 309.20
2023-09-28 84 -> 87 322.28 -> 305.05

Saint Petersburg Open 2021: 29% -> 14%
2023-09-20 85 -> 84 322.28

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 495 2024-09-01 49/96 100% 3.85 RR SPB Riichi Open 2024
2 682 2023-09-03 35/108 71% 4.00 RR SPB Riichi Open 2023
3 627 2021-11-28 29/76 0% 3.45 RR Saint Petersburg Open 2021
4 476 2019-11-24 34/64 0% 3.45 EMA Saint Petersburg Open 2019
5 513 2019-06-02 20/40 0% 2.90 RR Summer Cup 2019
6 256 2018-12-23 30/40 0% 2.90 RR North Cup 2018
7 304 2018-09-23 17/24 0% 2.50 RR West cup 2018
8 408 2018-06-11 43/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
9 516 2018-03-04 16/32 0% 2.70 RR East Cup 2018
10 60 2017-12-11 79/84 0% 3.40 EMA VI Russian Riichi Championship 2017