Maniakhin Petr

From Saint Petersburg, Russia

EMA: 15990315

Player page

Internal rating (RR)

Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).

104 place (213.15).

max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645

p1 = (512.82 * 2.90 * 0.43 + 476.19 * 3.45 * 0.71 + 0 + 0 + 0) / (2.90 * 0.43 + 3.45 * 0.71 + 1 + 1 + 1) = 269.9904208490035

p2 = (476.19 * 3.45 * 0.71 + 512.82 * 2.90 * 0.43) / max_coefficients = 156.30549701807712

score = 269.9904208490035 * 0.5 + 156.30549701807712 * 0.5 = 213.1479589335403

Rating changes

Show

all results
Date Place Points Reason
2021-02-01 118 -> 104 347.45 -> 213.15
2020-02-01 118 347.45

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 476 2019-11-24 34/64 71% 3.45 EMA Saint Petersburg Open 2019
2 513 2019-06-02 20/40 43% 2.90 RR Summer Cup 2019
3 256 2018-12-23 30/40 0% 2.90 RR North Cup 2018
4 304 2018-09-23 17/24 0% 2.50 RR West cup 2018
5 408 2018-06-11 43/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
6 516 2018-03-04 16/32 0% 2.70 RR East Cup 2018
7 60 2017-12-11 79/84 0% 3.40 EMA VI Russian Riichi Championship 2017