Mamin Vladislav

From Saint Petersburg, Russia

EMA: 15990329

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Internal rating (RR)

Rating date April 10, 2019 (latest changes April 10, 2019).

77 place (487.86).

max_coefficients = (3.85 * 1 + 3.80 * 1 + 3.55 * 1 + 3.45 * 1) = 14.649999999999999

p1 = (400 * 3.20 * 0.29 + 641.03 * 1.80 * 0.43 + 841.27 * 3.45 * 0.57 + 903.23 * 2.70 * 0.86 + 0) / (3.20 * 0.29 + 1.80 * 0.43 + 3.45 * 0.57 + 2.70 * 0.86 + 1) = 661.1296157630944

p2 = (903.23 * 2.70 * 0.86 + 841.27 * 3.45 * 0.57 + 641.03 * 1.80 * 0.43 + 400 * 3.20 * 0.29) / max_coefficients = 314.59931740614337

score = 661.1296157630944 * 0.5 + 314.59931740614337 * 0.5 = 487.86446658461887

Rating changes

Show

Date Place Points Reason
2019-04-01 77 493.13 -> 487.86

Saint Petersburg championship. Northern cup 2017: 57% -> 43%

2019-03-17 76 -> 77 493.13
2019-03-12 77 -> 76 493.13
2019-03-11 79 -> 77 493.13
2019-03-09 78 -> 79 491.63 -> 493.13

Moscow Open Riichi Marathon 2017: 43% -> 29%

2019-03-04 70 -> 78 509.69 -> 491.63

East Cup 2018: 100% -> 86%

2019-02-22 67 -> 70 529.14 -> 509.69

Moscow Riichi Open 2017: 71% -> 57%

2019-02-11 68 -> 67 529.14
2019-02-10 67 -> 68 529.14
2019-02-01 67 534.38 -> 529.14

Saint Petersburg championship. Northern cup 2017: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 903 2018-03-04 4/32 86% 2.70 RR East Cup 2018
2 841 2017-10-22 11/64 57% 3.45 EMA Moscow Riichi Open 2017
3 641 2017-10-01 15/40 43% 1.80 RR Saint Petersburg championship. Northern cup 2017
4 400 2017-07-09 22/36 29% 3.20 RR Moscow Open Riichi Marathon 2017
5 581 2016-10-16 14/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
6 290 2016-03-27 23/32 0% 1.60 RR Tournament of 4 winds. East cup 2016
7 556 2016-03-13 45/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
8 667 2015-12-06 6/16 0% 2.00 RR Two-day tournament of Saint Petersburg riichi mahjong league