Sychev Ivan
From Saint Petersburg, Russia
EMA: 15990298
Common russian riichi rating (CRR)
Rating date Aug. 18, 2024 (latest changes Aug. 18, 2024).
87 place (411.93).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.05 * 1) = 15.3
p1 = (739.13 * 1.40 * 0.71 + 897.20 * 4 * 1 + 0 + 0 + 0) / (1.40 * 0.71 + 4 * 1 + 1 + 1 + 1) = 540.9911475221312
p2 = (897.20 * 4 * 1 + 739.13 * 1.40 * 0.71) / max_coefficients = 282.87189542483657
score = 540.9911475221312 * 0.5 + 282.87189542483657 * 0.5 = 411.9315214734839
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-08-11 | 89 -> 87 | 410.43 -> 411.93 | |
2024-08-04 | 79 -> 89 | 416.08 -> 410.43 | |
2024-07-14 | 75 -> 79 | 416.08 | |
2024-07-06 | 78 -> 75 | 416.08 | |
2024-06-27 | 79 -> 78 | 416.08 | |
2024-06-22 | 77 -> 79 | 423.46 -> 416.08 |
Fire cup 2023: 86% -> 71% |
2024-06-18 | 76 -> 77 | 423.46 | |
2024-06-11 | 81 -> 76 | 418.23 -> 423.46 | |
2024-06-09 | 78 -> 81 | 418.23 | |
2024-05-19 | 75 -> 78 | 418.23 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 897 |
|
12/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 739 |
|
7/24 | 71% | 1.40 | CRR | Fire cup 2023 |
3 | 856 |
|
17/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
4 | 667 |
|
22/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
5 | 615 |
|
16/40 | 0% | 2.90 | RR | North Cup 2018 |
6 | 565 |
|
11/24 | 0% | 2.50 | RR | West cup 2018 |
7 | 958 |
|
4/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
8 | 419 |
|
19/32 | 0% | 2.70 | RR | East Cup 2018 |
9 | 940 |
|
6/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
10 | 821 |
|
8/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
11 | 103 |
|
36/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
12 | 744 |
|
12/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
13 | 620 |
|
28/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 |
14 | 613 |
|
13/32 | 0% | 1.60 | RR | Tournament of 4 winds. West cup 2016 |