Petrova Anna
From Nizhny Novgorod, Russia
Online rating
Rating date April 21, 2023 (latest changes April 21, 2023).
102 place (156.99).
how we calculated rating score
max_coefficients = (2.80 * 1 + 2.30 * 1 + 3.25 * 0.57) = 6.95705
p1 = (194.17 * 3.45 * 0.14 + 459.77 * 3.25 * 0.57 + 0 + 0 + 0) / (3.45 * 0.14 + 3.25 * 0.57 + 1 + 1 + 1) = 177.48415670493108
p2 = (459.77 * 3.25 * 0.57 + 194.17 * 3.45 * 0.14) / max_coefficients = 136.4874479844187
score = 177.48415670493108 * 0.5 + 136.4874479844187 * 0.5 = 156.98580234467488
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-04-20 | 104 -> 102 | 156.99 | |
| 2023-04-18 | 95 -> 104 | 202.36 -> 156.99 |
Spring Online Tournament: 14% -> 0% |
| 2023-04-15 | 96 -> 95 | 202.36 | |
| 2023-04-13 | 97 -> 96 | 202.36 | |
| 2023-04-06 | 158 -> 97 | 329.24 -> 202.36 | |
| 2021-02-01 | 14 -> 158 | 660.02 -> 329.24 | |
| 2020-02-01 | 14 | 660.02 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 460 |
|
48/88 | 57% | 3.25 | ONLINE | Winter Team Fight | Russia |
| 2 | 194 |
|
84/104 | 14% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia |
| 3 | 538 |
|
19/40 | 0% | 2.40 | ONLINE | Spring Online Tournament | Russia |
| 4 | 474 |
|
72/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia |
| 5 | 105 |
|
129/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |
| 6 | 0 |
|
20/20 | 0% | 1.90 | ONLINE | IORMC Qualifiers 2019 | Russia |
| 7 | 900 |
|
5/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament | Russia |
| 8 | 236 |
|
43/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia |
| 9 | 892 |
|
10/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup | Russia |
| 10 | 587 |
|
27/64 | 0% | 2.95 | ONLINE | Winter Online Tournament | Russia |
| 11 | 681 |
|
16/48 | 0% | 2.00 | ONLINE | Winter riichi-blitz 2017 | Russia |
| 12 | 30 |
|
66/68 | 0% | 2.40 | ONLINE | Autumn riichi-blitz 2016 | Russia |