Karpov Alexandr

From Novosibirsk, Russia

EMA: 15020011

Player page

Online rating

Rating date Feb. 12, 2023 (latest changes Feb. 12, 2023).

14 place (607.88).

max_coefficients = (2.80 * 1 + 3.25 * 0.71 + 2.30 * 1) = 7.421475

p1 = (932.04 * 3.45 * 0.29 + 36.14 * 3.20 * 0.14 + 741.94 * 2.20 * 0.57 + 272.73 * 1.70 * 0.57 + 586.21 * 3.25 * 0.71 + 1000 * 2.40 * 0.71) / (3.45 * 0.29 + 3.20 * 0.14 + 2.20 * 0.57 + 1.70 * 0.57 + 3.25 * 0.71 + 2.40 * 0.71) = 675.7291882914677

p2 = (1000 * 2.40 * 0.71 + 586.21 * 3.25 * 0.71 + 741.94 * 2.20 * 0.57) / max_coefficients = 540.0341576303902

score = 675.7291882914677 * 0.5 + 540.0341576303902 * 0.5 = 607.8816729609289

Rating changes

Show

Date Place Points Reason
2023-02-12 13 -> 14 637.87 -> 607.88

Winter Online Tournament: 86% -> 71%

2023-01-26 13 631.77 -> 637.87

IORMC Qualifiers 2021: 71% -> 57%

2023-01-25 14 -> 13 631.77
2023-01-21 18 -> 14 615.03 -> 631.77

No Dora Tournament: 29% -> 14%

2023-01-16 14 -> 18 652.73 -> 615.03

Riichi Online Open Team Cup: 43% -> 29%

2023-01-14 13 -> 14 649.22 -> 652.73

Winter Team Fight: 86% -> 71%

2023-01-10 15 -> 13 653.34 -> 649.22

Winter Online Tournament: 14% -> 0%

2022-12-15 15 654.51 -> 653.34

I wish to have dora san...: 71% -> 57%

2022-12-12 12 -> 15 668.99 -> 654.51

Winter Online Tournament: 100% -> 86%

2022-11-26 14 -> 12 664.54 -> 668.99

IORMC Qualifiers 2021: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 1000 2021-12-12 1/40 71% 2.40 ONLINE Winter Online Tournament
2 586 2021-11-14 37/88 71% 3.25 ONLINE Winter Team Fight
3 273 2021-09-26 9/12 57% 1.70 ONLINE IORMC Qualifiers 2021
4 742 2021-08-15 9/32 57% 2.20 ONLINE I wish to have dora san...
5 932 2021-05-16 8/104 29% 3.45 ONLINE Riichi Online Open Team Cup
6 36 2021-03-21 81/84 14% 3.20 ONLINE No Dora Tournament
7 851 2021-01-10 11/68 0% 3.00 ONLINE Winter Online Tournament
8 414 2020-11-01 59/100 0% 3.40 ONLINE Riichi Online Open Team Cup
9 871 2020-10-11 5/32 0% 2.20 ONLINE 北斗 Tournament
10 137 2020-07-12 45/52 0% 2.70 ONLINE Rainy season tournament[梅雨]
11 690 2020-06-14 23/72 0% 3.05 ONLINE Summer Tournament
12 889 2020-05-24 16/136 0% 3.69 ONLINE Riichi Online Open Team Cup
13 972 2020-05-10 4/108 0% 3.50 ONLINE Spring tournament
14 878 2020-04-26 16/124 0% 3.06 ONLINE Be cool stay home
15 813 2020-04-12 27/140 0% 3.70 ONLINE Corona go away
16 175 2020-02-16 119/144 0% 3.71 ONLINE Riichi Online Open Team Cup 2020
17 1000 2019-09-01 1/41 0% 2.40 ONLINE Autumn Online Tournament
18 509 2019-07-28 28/56 0% 2.80 ONLINE Summer Online Tournament
19 386 2019-02-17 52/84 0% 3.20 ONLINE Riichi Online Open Team Cup
20 451 2018-04-08 29/52 0% 2.70 ONLINE Spring online tournament 2018
21 326 2018-02-10 30/44 0% 2.30 ONLINE Winter online tournament 2018
22 343 2016-11-26 45/68 0% 2.40 ONLINE Autumn riichi-blitz 2016