Shirshov Alexander

From Saint Petersburg, Russia

EMA: 15990308

Player page

Common russian riichi rating (CRR)

Rating date Sept. 28, 2023 (latest changes Sept. 28, 2023).

49 place (457.48).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (741.94 * 1.80 * 1 + 946.67 * 3.45 * 0.14 + 565.22 * 1.40 * 1 + 923.08 * 1.80 * 0.86 + 0) / (1.80 * 1 + 3.45 * 0.14 + 1.40 * 1 + 1.80 * 0.86 + 1) = 644.2797498630886

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 = 270.6739208571901

score = 644.2797498630886 * 0.5 + 270.6739208571901 * 0.5 = 457.4768353601394

Rating changes

Show

all results
Date Place Points Reason
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
2023-06-12 25 522.14 -> 529.27

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 565 2023-04-22 11/24 100% 1.40 CRR Fire cup 2023
2 742 2023-02-25 9/32 100% 1.80 CRR Earth cup
3 923 2022-08-27 4/40 86% 1.80 CRR Sun tournament
4 947 2021-11-28 5/76 14% 3.45 RR Saint Petersburg Open 2021
5 317 2019-11-24 44/64 0% 3.45 EMA Saint Petersburg Open 2019
6 308 2019-06-02 28/40 0% 2.90 RR Summer Cup 2019
7 872 2018-12-23 6/40 0% 2.90 RR North Cup 2018
8 957 2018-09-23 2/24 0% 2.50 RR West cup 2018
9 676 2018-06-11 24/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
10 613 2018-03-04 13/32 0% 2.70 RR East Cup 2018
11 554 2017-12-11 38/84 0% 3.40 EMA VI Russian Riichi Championship 2017
12 873 2017-10-22 9/64 0% 3.45 EMA Moscow Riichi Open 2017
13 615 2017-10-01 16/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
14 513 2017-06-03 20/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
15 186 2017-03-18 36/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
16 127 2016-12-04 63/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
17 323 2016-10-16 22/32 0% 1.60 RR Tournament of 4 winds. West cup 2016