Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date Jan. 5, 2023 (latest changes Jan. 5, 2023).
42 place (439.19).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (946.67 * 3.45 * 0.86 + 923.08 * 1.80 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 1.80 * 1 + 1 + 1 + 1) = 575.071918958308
p2 = (946.67 * 3.45 * 0.86 + 923.08 * 1.80 * 1) / max_coefficients = 303.3134913012482
score = 575.071918958308 * 0.5 + 303.3134913012482 * 0.5 = 439.19270512977806
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2022-12-19 | 43 -> 42 | 437.73 -> 439.19 | |
2022-12-18 | 41 -> 43 | 437.73 | |
2022-12-03 | 145 -> 41 | 137.10 -> 437.73 | |
2021-02-01 | 89 -> 145 | 460.67 -> 137.10 | |
2020-02-01 | 89 | 460.67 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 923 |
|
4/40 | 100% | 1.80 | CRR | Sun tournament |
2 | 947 |
|
5/76 | 86% | 3.45 | RR | Saint Petersburg Open 2021 |
3 | 317 |
|
44/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
4 | 308 |
|
28/40 | 0% | 2.90 | RR | Summer Cup 2019 |
5 | 872 |
|
6/40 | 0% | 2.90 | RR | North Cup 2018 |
6 | 957 |
|
2/24 | 0% | 2.50 | RR | West cup 2018 |
7 | 676 |
|
24/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
8 | 613 |
|
13/32 | 0% | 2.70 | RR | East Cup 2018 |
9 | 554 |
|
38/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |
10 | 873 |
|
9/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 |
11 | 615 |
|
16/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |
12 | 513 |
|
20/40 | 0% | 1.80 | RR | Saint Petersburg championship. West cup 2017 |
13 | 186 |
|
36/44 | 0% | 1.90 | RR | Saint Petersburg championship. South cup 2017 |
14 | 127 |
|
63/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 |
15 | 323 |
|
22/32 | 0% | 1.60 | RR | Tournament of 4 winds. West cup 2016 |