Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date Dec. 27, 2023 (latest changes Dec. 27, 2023).
78 place (354.88).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (923.08 * 1.80 * 0.57 + 741.94 * 1.80 * 1 + 565.22 * 1.40 * 1 + 0 + 0) / (1.80 * 0.57 + 1.80 * 1 + 1.40 * 1 + 1 + 1) = 493.88618805109405
p2 = (741.94 * 1.80 * 1 + 923.08 * 1.80 * 0.57 + 565.22 * 1.40 * 1) / max_coefficients = 215.87500754395495
score = 493.88618805109405 * 0.5 + 215.87500754395495 * 0.5 = 354.8805977975245
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-12-27 | 75 -> 78 | 371.72 -> 354.88 |
Sun tournament: 71% -> 57% |
2023-12-12 | 76 -> 75 | 371.72 | |
2023-11-28 | 53 -> 76 | 448.79 -> 371.72 |
Saint Petersburg Open 2021: 14% -> 0% |
2023-11-26 | 50 -> 53 | 449.73 -> 448.79 | |
2023-11-20 | 51 -> 50 | 449.73 | |
2023-11-06 | 51 | 444.29 -> 449.73 | |
2023-11-05 | 49 -> 51 | 444.29 | |
2023-10-27 | 48 -> 49 | 458.33 -> 444.29 |
Sun tournament: 86% -> 71% |
2023-10-12 | 49 -> 48 | 457.48 -> 458.33 | |
2023-09-28 | 40 -> 49 | 484.26 -> 457.48 |
Saint Petersburg Open 2021: 29% -> 14% |
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 | 57% | 1.80 | CRR | Sun tournament |
4 | 947 |
|
5/76 | 0% | 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 |