Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).
41 place (484.26).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (946.67 * 3.45 * 0.29 + 923.08 * 1.80 * 0.86 + 741.94 * 1.80 * 1 + 565.22 * 1.40 * 1 + 0) / (3.45 * 0.29 + 1.80 * 0.86 + 1.80 * 1 + 1.40 * 1 + 1) = 666.4214391289516
p2 = (923.08 * 1.80 * 0.86 + 741.94 * 1.80 * 1 + 946.67 * 3.45 * 0.29 + 565.22 * 1.40 * 1) / max_coefficients = 302.0956463066722
score = 666.4214391289516 * 0.5 + 302.0956463066722 * 0.5 = 484.2585427178119
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2023-06-12 | 25 | 522.14 -> 529.27 | |
2023-06-11 | 24 -> 25 | 538.31 -> 522.14 | |
2023-05-28 | 22 -> 24 | 563.33 -> 538.31 |
Saint Petersburg Open 2021: 57% -> 43% |
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 | 29% | 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 |