Karpov Alexandr

From Novosibirsk, Russia

EMA: 15020011

Player page

Online rating

Rating date Nov. 21, 2022 (latest changes Nov. 21, 2022).

14 place (664.54).

max_coefficients = (2.80 * 1 + 3.25 * 0.86 + 2.60 * 1) = 8.185575

p1 = (850.75 * 3 * 0.14 + 36.14 * 3.20 * 0.29 + 932.04 * 3.45 * 0.43 + 741.94 * 2.20 * 0.71 + 272.73 * 1.70 * 0.86 + 586.21 * 3.25 * 0.86 + 1000 * 2.40 * 1) / (3 * 0.14 + 3.20 * 0.29 + 3.45 * 0.43 + 2.20 * 0.71 + 1.70 * 0.86 + 3.25 * 0.86 + 2.40 * 1) = 668.0264939788677

p2 = (1000 * 2.40 * 1 + 586.21 * 3.25 * 0.86 + 932.04 * 3.45 * 0.43) / max_coefficients = 661.0531331030502

score = 668.0264939788677 * 0.5 + 661.0531331030502 * 0.5 = 664.5398135409589

Rating changes

Show

Date Place Points Reason
2022-11-21 18 -> 14 651.97 -> 664.54

No Dora Tournament: 43% -> 29%

2022-11-16 12 -> 18 685.96 -> 651.97

Riichi Online Open Team Cup: 57% -> 43%

2022-11-14 12 681.17 -> 685.96

Winter Team Fight: 100% -> 86%

2022-11-12 13 -> 12 681.17
2022-11-10 13 684.47 -> 681.17

Winter Online Tournament: 29% -> 14%

2022-11-01 14 -> 13 680.02 -> 684.47

Riichi Online Open Team Cup: 14% -> 0%

2022-10-20 15 -> 14 680.02
2022-10-15 15 681.08 -> 680.02

I wish to have dora san...: 86% -> 71%

2022-10-11 17 -> 15 683.54 -> 681.08

北斗 Tournament: 14% -> 0%

2022-09-27 16 -> 17 683.54

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 1000 2021-12-12 1/40 100% 2.40 ONLINE Winter Online Tournament
2 586 2021-11-14 37/88 86% 3.25 ONLINE Winter Team Fight
3 273 2021-09-26 9/12 86% 1.70 ONLINE IORMC Qualifiers 2021
4 742 2021-08-15 9/32 71% 2.20 ONLINE I wish to have dora san...
5 932 2021-05-16 8/104 43% 3.45 ONLINE Riichi Online Open Team Cup
6 36 2021-03-21 81/84 29% 3.20 ONLINE No Dora Tournament
7 851 2021-01-10 11/68 14% 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