Petrova Anna
From Nizhny Novgorod, Russia
Online rating
Rating date Feb. 10, 2023 (latest changes Feb. 10, 2023).
103 place (245.50).
how we calculated rating score
max_coefficients = (2.80 * 1 + 3.25 * 0.71 + 2.30 * 1) = 7.421475
p1 = (538.46 * 2.40 * 0.29 + 194.17 * 3.45 * 0.29 + 459.77 * 3.25 * 0.71 + 0 + 0) / (2.40 * 0.29 + 3.45 * 0.29 + 3.25 * 0.71 + 1 + 1) = 271.6484059257578
p2 = (459.77 * 3.25 * 0.71 + 538.46 * 2.40 * 0.29 + 194.17 * 3.45 * 0.29) / max_coefficients = 219.35531683391778
score = 271.6484059257578 * 0.5 + 219.35531683391778 * 0.5 = 245.5018613798378
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-01-21 | 105 -> 103 | 245.50 | |
2023-01-16 | 108 -> 105 | 249.01 -> 245.50 |
Riichi Online Open Team Cup: 43% -> 29% |
2023-01-14 | 104 -> 108 | 262.18 -> 249.01 |
Winter Team Fight: 86% -> 71% |
2023-01-10 | 105 -> 104 | 262.18 | |
2022-12-20 | 109 -> 105 | 262.18 | |
2022-12-18 | 103 -> 109 | 280.00 -> 262.18 |
Spring Online Tournament: 43% -> 29% |
2022-12-13 | 104 -> 103 | 280.00 | |
2022-12-12 | 104 | 275.07 -> 280.00 | |
2022-11-21 | 106 -> 104 | 275.07 | |
2022-11-16 | 110 -> 106 | 277.85 -> 275.07 |
Riichi Online Open Team Cup: 57% -> 43% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 460 |
|
48/88 | 71% | 3.25 | ONLINE | Winter Team Fight |
2 | 194 |
|
84/104 | 29% | 3.45 | ONLINE | Riichi Online Open Team Cup |
3 | 538 |
|
19/40 | 29% | 2.40 | ONLINE | Spring Online Tournament |
4 | 474 |
|
72/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup |
5 | 105 |
|
129/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 |
6 | 0 |
|
20/20 | 0% | 1.90 | ONLINE | IORMC Qualifiers 2019 |
7 | 900 |
|
5/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament |
8 | 236 |
|
43/56 | 0% | 2.80 | ONLINE | Summer Online Tournament |
9 | 892 |
|
10/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup |
10 | 587 |
|
27/64 | 0% | 2.95 | ONLINE | Winter Online Tournament |
11 | 681 |
|
16/48 | 0% | 2.00 | ONLINE | Winter riichi-blitz 2017 |
12 | 30 |
|
66/68 | 0% | 2.40 | ONLINE | Autumn riichi-blitz 2016 |