Sychev Ivan

From Saint Petersburg, Russia

EMA: 15990298

Player page

Internal rating (RR)

Rating date May 28, 2022 (latest changes April 30, 2022).

49 place (552.52).

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

p1 = (565.22 * 2.50 * 0.14 + 615.38 * 2.90 * 0.29 + 666.67 * 3.45 * 1 + 855.86 * 4.05 * 1 + 0) / (2.50 * 0.14 + 2.90 * 0.29 + 3.45 * 1 + 4.05 * 1 + 1) = 668.8155213106223

p2 = (855.86 * 4.05 * 1 + 666.67 * 3.45 * 1 + 615.38 * 2.90 * 0.29 + 565.22 * 2.50 * 0.14) / max_coefficients = 436.2289562289561

score = 668.8155213106223 * 0.5 + 436.2289562289561 * 0.5 = 552.5222387697893

Rating changes

Show

Date Place Points Reason
2022-04-30 51 -> 49 560.01 -> 552.52

North Cup 2018: 43% -> 29%

2022-03-30 50 -> 51 565.08 -> 560.01

West cup 2018: 29% -> 14%

2022-03-20 49 -> 50 565.87 -> 565.08
2022-02-28 49 571.13 -> 565.87

North Cup 2018: 57% -> 43%

2022-01-30 41 -> 49 614.09 -> 571.13

West cup 2018: 43% -> 29%

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

2021-12-30 41 610.55 -> 614.09

North Cup 2018: 71% -> 57%

2021-12-19 42 -> 41 610.55
2021-11-30 41 -> 42 624.69 -> 610.55

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

West cup 2018: 57% -> 43%

2021-11-28 38 -> 41 624.69
2021-11-06 34 -> 38 624.69

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 856 2019-12-15 17/112 100% 4.05 EMA VIII Russian Riichi Championship
2 667 2019-11-24 22/64 100% 3.45 EMA Saint Petersburg Open 2019
3 615 2018-12-23 16/40 29% 2.90 RR North Cup 2018
4 565 2018-09-23 11/24 14% 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