Karpov Alexandr
From Novosibirsk, Russia
EMA: 15020011
Online rating
Rating date Aug. 17, 2023 (latest changes Aug. 17, 2023).
52 place (252.20).
how we calculated rating score
max_coefficients = (3 * 1 + 2.80 * 0.86 + 2.30 * 1) = 7.699879999999999
p1 = (272.73 * 1.70 * 0.14 + 586.21 * 3.25 * 0.29 + 1000 * 2.40 * 0.29 + 0 + 0) / (1.70 * 0.14 + 3.25 * 0.29 + 2.40 * 0.29 + 1 + 1) = 336.0629067948101
p2 = (1000 * 2.40 * 0.29 + 586.21 * 3.25 * 0.29 + 272.73 * 1.70 * 0.14) / max_coefficients = 168.34548070879026
score = 336.0629067948101 * 0.5 + 168.34548070879026 * 0.5 = 252.20419375180018
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-08-15 | 40 -> 52 | 336.15 -> 252.20 |
I wish to have dora san...: 14% -> 0% |
| 2023-08-12 | 36 -> 40 | 383.68 -> 336.15 |
Winter Online Tournament: 43% -> 29% |
| 2023-07-26 | 36 | 375.28 -> 383.68 |
IORMC Qualifiers 2021: 29% -> 14% |
| 2023-07-25 | 38 -> 36 | 375.28 | |
| 2023-07-14 | 34 -> 38 | 396.82 -> 375.28 |
Winter Team Fight: 43% -> 29% |
| 2023-07-12 | 35 -> 34 | 396.82 | |
| 2023-07-02 | 29 -> 35 | 432.42 -> 396.82 | |
| 2023-06-26 | 30 -> 29 | 421.91 -> 432.42 | |
| 2023-06-15 | 25 -> 30 | 447.41 -> 421.91 |
I wish to have dora san...: 29% -> 14% |
| 2023-06-13 | 27 -> 25 | 447.41 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 1000 |
|
1/40 | 29% | 2.40 | ONLINE | Winter Online Tournament |
| 2 | 586 |
|
37/88 | 29% | 3.25 | ONLINE | Winter Team Fight |
| 3 | 273 |
|
9/12 | 14% | 1.70 | ONLINE | IORMC Qualifiers 2021 |
| 4 | 742 |
|
9/32 | 0% | 2.20 | ONLINE | I wish to have dora san... |
| 5 | 932 |
|
8/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup |
| 6 | 36 |
|
81/84 | 0% | 3.20 | ONLINE | No Dora Tournament |
| 7 | 851 |
|
11/68 | 0% | 3.00 | ONLINE | Winter Online Tournament |
| 8 | 414 |
|
59/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup |
| 9 | 871 |
|
5/32 | 0% | 2.20 | ONLINE | 北斗 Tournament |
| 10 | 137 |
|
45/52 | 0% | 2.70 | ONLINE | Rainy season tournament［梅雨］ |
| 11 | 690 |
|
23/72 | 0% | 3.05 | ONLINE | Summer Tournament |
| 12 | 889 |
|
16/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup |
| 13 | 972 |
|
4/108 | 0% | 3.50 | ONLINE | Spring tournament |
| 14 | 878 |
|
16/124 | 0% | 3.06 | ONLINE | Be cool stay home |
| 15 | 813 |
|
27/140 | 0% | 3.70 | ONLINE | Corona go away |
| 16 | 175 |
|
119/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 |
| 17 | 1000 |
|
1/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament |
| 18 | 509 |
|
28/56 | 0% | 2.80 | ONLINE | Summer Online Tournament |
| 19 | 386 |
|
52/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup |
| 20 | 451 |
|
29/52 | 0% | 2.70 | ONLINE | Spring online tournament 2018 |
| 21 | 326 |
|
30/44 | 0% | 2.30 | ONLINE | Winter online tournament 2018 |
| 22 | 343 |
|
45/68 | 0% | 2.40 | ONLINE | Autumn riichi-blitz 2016 |