Maniakhin Petr
From Saint Petersburg, Russia
EMA: 15990315
Internal rating (RR)
Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).
103 place (213.15).
how we calculated rating score
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
Date | Place | Points | Reason |
---|---|---|---|
2021-02-01 | 117 -> 103 | 347.45 -> 213.15 | |
2020-02-01 | 117 | 347.45 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 476 |
|
34/64 | 71% | 3.45 | EMA | Saint Petersburg Open 2019 |
2 | 513 |
|
20/40 | 43% | 2.90 | RR | Summer Cup 2019 |
3 | 256 |
|
30/40 | 0% | 2.90 | RR | North Cup 2018 |
4 | 304 |
|
17/24 | 0% | 2.50 | RR | West cup 2018 |
5 | 408 |
|
43/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
6 | 516 |
|
16/32 | 0% | 2.70 | RR | East Cup 2018 |
7 | 60 |
|
79/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |