Sychev Ivan
From Saint Petersburg, Russia
EMA: 15990298
Internal rating (RR)
Rating date May 28, 2022 (latest changes April 30, 2022).
49 place (552.52).
how we calculated rating score
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
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 |
|
17/112 | 100% | 4.05 | EMA | VIII Russian Riichi Championship |
2 | 667 |
|
22/64 | 100% | 3.45 | EMA | Saint Petersburg Open 2019 |
3 | 615 |
|
16/40 | 29% | 2.90 | RR | North Cup 2018 |
4 | 565 |
|
11/24 | 14% | 2.50 | RR | West cup 2018 |
5 | 958 |
|
4/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
6 | 419 |
|
19/32 | 0% | 2.70 | RR | East Cup 2018 |
7 | 940 |
|
6/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
8 | 821 |
|
8/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
9 | 103 |
|
36/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
10 | 744 |
|
12/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
11 | 620 |
|
28/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 |
12 | 613 |
|
13/32 | 0% | 1.60 | RR | Tournament of 4 winds. West cup 2016 |