Petuhov Mikhail

From Saint Petersburg, Russia

EMA: 15990114

Player page

Internal rating (RR)

Rating date May 24, 2022 (latest changes April 30, 2022).

206 place (126.90).

max_coefficients = (4.05 * 1 + 3.85 * 1 + 3.50 * 1 + 3.45 * 1) = 14.850000000000001

p1 = (769.23 * 2.90 * 0.29 + 174.60 * 3.45 * 1 + 0 + 0 + 0) / (2.90 * 0.29 + 3.45 * 1 + 1 + 1 + 1) = 170.324227556938

p2 = (769.23 * 2.90 * 0.29 + 174.60 * 3.45 * 1) / max_coefficients = 83.48215488215487

score = 170.324227556938 * 0.5 + 83.48215488215487 * 0.5 = 126.90319121954644

Rating changes

Show

Date Place Points Reason
2022-04-30 203 -> 206 153.77 -> 126.90

North Cup 2018: 43% -> 29%

2022-03-30 207 -> 203 153.77
2022-03-20 195 -> 207 153.95 -> 153.77
2022-02-28 191 -> 195 178.54 -> 153.95

North Cup 2018: 57% -> 43%

2022-01-30 187 -> 191 203.74 -> 178.54

RCR Saint Petersburg South Cup 2018: 14% -> 0%

2021-12-30 181 -> 187 224.22 -> 203.74

North Cup 2018: 71% -> 57%

2021-12-19 179 -> 181 224.22
2021-11-30 178 -> 179 231.63 -> 224.22

RCR Saint Petersburg South Cup 2018: 29% -> 14%

2021-11-28 172 -> 178 231.63
2021-11-06 170 -> 172 231.63

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 175 2019-11-24 53/64 100% 3.45 EMA Saint Petersburg Open 2019
2 769 2018-12-23 10/40 29% 2.90 RR North Cup 2018
3 352 2018-06-11 47/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
4 194 2018-03-04 26/32 0% 2.70 RR East Cup 2018
5 494 2017-12-11 43/84 0% 3.40 EMA VI Russian Riichi Championship 2017
6 128 2017-10-01 35/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
7 872 2017-06-03 6/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
8 326 2017-03-18 30/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
9 423 2016-12-04 42/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
10 355 2016-10-16 21/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
11 609 2016-07-03 10/24 0% 1.40 RR Tournament of 4 winds. South cup 2016
12 32 2016-03-27 31/32 0% 1.60 RR Tournament of 4 winds. East cup 2016
13 13 2014-02-15 75/76 0% 2.50 RR Moscow Riichi 2014