Sychev Ivan

From Saint Petersburg, Russia

EMA: 15990298

Player page

Common russian riichi rating (CRR)

Rating date June 18, 2021 (latest changes June 16, 2021).

46 place (375.37).

max_coefficients = (2.90 * 0.71 + 4.05 * 0.43 + 3.85 * 0.43 + 2.70 * 0.57) = 7.00019

p1 = (666.67 * 3.45 * 0.43 + 855.86 * 4.05 * 0.43 + 0 + 0 + 0) / (3.45 * 0.43 + 4.05 * 0.43 + 1 + 1 + 1) = 397.68283852280956

p2 = (855.86 * 4.05 * 0.43 + 666.67 * 3.45 * 0.43) / max_coefficients = 353.04756013765336

score = 397.68283852280956 * 0.5 + 353.04756013765336 * 0.5 = 375.36519933023146

Rating changes

Show

Date Place Points Reason
2021-06-15 41 -> 46 414.06 -> 375.37

VIII Russian Riichi Championship: 57% -> 43%

2021-06-02 43 -> 41 409.72 -> 414.06
2021-05-26 43 403.09 -> 409.72
2021-05-24 40 -> 43 424.95 -> 403.09

Saint Petersburg Open 2019: 57% -> 43%

2021-05-22 41 -> 40 424.95
2021-05-08 41 415.49 -> 424.95
2021-05-04 48 -> 41 409.76 -> 415.49
2021-04-15 43 -> 48 439.42 -> 409.76

VIII Russian Riichi Championship: 71% -> 57%

2021-04-02 45 -> 43 437.65 -> 439.42
2021-03-26 45 432.54 -> 437.65

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 856 2019-12-15 17/112 43% 4.05 EMA VIII Russian Riichi Championship
2 667 2019-11-24 22/64 43% 3.45 EMA Saint Petersburg Open 2019
3 615 2018-12-23 16/40 0% 2.90 RR North Cup 2018
4 565 2018-09-23 11/24 0% 2.50 RR West cup 2018
5 958 2018-06-11 4/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
6 419 2018-03-04 19/32 0% 2.70 RR East Cup 2018
7 940 2017-12-11 6/84 0% 3.40 EMA VI Russian Riichi Championship 2017
8 821 2017-10-01 8/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
9 103 2017-06-03 36/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
10 744 2017-03-18 12/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
11 620 2016-12-04 28/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
12 613 2016-10-16 13/32 0% 1.60 RR Tournament of 4 winds. West cup 2016