Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date Oct. 17, 2023 (latest changes Oct. 17, 2023).
48 place (458.33).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (946.67 * 3.45 * 0.14 + 923.08 * 1.80 * 0.86 + 741.94 * 1.80 * 1 + 565.22 * 1.40 * 1 + 0) / (3.45 * 0.14 + 1.80 * 0.86 + 1.80 * 1 + 1.40 * 1 + 1) = 644.2797498630887
p2 = (923.08 * 1.80 * 0.86 + 741.94 * 1.80 * 1 + 565.22 * 1.40 * 1 + 946.67 * 3.45 * 0.14) / max_coefficients = 272.37898305084747
score = 644.2797498630887 * 0.5 + 272.37898305084747 * 0.5 = 458.32936645696805
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-10-12 | 49 -> 48 | 457.48 -> 458.33 | |
2023-09-28 | 40 -> 49 | 484.26 -> 457.48 |
Saint Petersburg Open 2021: 29% -> 14% |
2023-09-20 | 41 -> 40 | 484.26 | |
2023-09-03 | 29 -> 41 | 497.54 -> 484.26 | |
2023-08-27 | 25 -> 29 | 510.97 -> 497.54 |
Sun tournament: 100% -> 86% |
2023-08-26 | 23 -> 25 | 510.97 | |
2023-08-19 | 24 -> 23 | 510.97 | |
2023-08-12 | 27 -> 24 | 503.94 -> 510.97 | |
2023-07-28 | 23 -> 27 | 529.27 -> 503.94 |
Saint Petersburg Open 2021: 43% -> 29% |
2023-07-20 | 25 -> 23 | 529.27 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 565 |
|
11/24 | 100% | 1.40 | CRR | Fire cup 2023 |
2 | 742 |
|
9/32 | 100% | 1.80 | CRR | Earth cup |
3 | 923 |
|
4/40 | 86% | 1.80 | CRR | Sun tournament |
4 | 947 |
|
5/76 | 14% | 3.45 | RR | Saint Petersburg Open 2021 |
5 | 317 |
|
44/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
6 | 308 |
|
28/40 | 0% | 2.90 | RR | Summer Cup 2019 |
7 | 872 |
|
6/40 | 0% | 2.90 | RR | North Cup 2018 |
8 | 957 |
|
2/24 | 0% | 2.50 | RR | West cup 2018 |
9 | 676 |
|
24/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
10 | 613 |
|
13/32 | 0% | 2.70 | RR | East Cup 2018 |
11 | 554 |
|
38/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
12 | 873 |
|
9/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 |
13 | 615 |
|
16/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
14 | 513 |
|
20/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
15 | 186 |
|
36/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
16 | 127 |
|
63/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 |
17 | 323 |
|
22/32 | 0% | 1.60 | RR | Tournament of 4 winds. West cup 2016 |