Petrova Anna
From Nizhny Novgorod, Russia
Online rating
Rating date March 31, 2025 (latest changes March 2, 2025).
41 place (201.18).
how we calculated rating score
max_coefficients = (3.70 * 1 + 3.05 * 1 + 2.40 * 0.86) = 8.80704
p1 = (373.13 * 3 * 0.29 + 536.59 * 2.40 * 0.86 + 0 + 0 + 0) / (3 * 0.29 + 2.40 * 0.86 + 1 + 1 + 1) = 240.7095537136422
p2 = (536.59 * 2.40 * 0.86 + 373.13 * 3 * 0.29) / max_coefficients = 161.64227708742095
score = 240.7095537136422 * 0.5 + 161.64227708742095 * 0.5 = 201.17591540053158
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-02 | 39 -> 41 | 228.78 -> 201.18 |
Double Tournament with Naga: 43% -> 29% Spring online tournament 2024: 100% -> 86% |
| 2025-01-18 | 34 -> 39 | 242.66 -> 228.78 | |
| 2025-01-02 | 33 -> 34 | 255.93 -> 242.66 |
Double Tournament with Naga: 57% -> 43% |
| 2024-11-02 | 31 -> 33 | 264.99 -> 255.93 |
Double Tournament with Naga: 71% -> 57% |
| 2024-09-21 | 30 -> 31 | 264.99 | |
| 2024-09-11 | 35 -> 30 | 264.99 | |
| 2024-09-02 | 34 -> 35 | 270.54 -> 264.99 |
Double Tournament with Naga: 86% -> 71% |
| 2024-07-11 | 36 -> 34 | 270.54 | |
| 2024-07-02 | 35 -> 36 | 275.55 -> 270.54 |
Double Tournament with Naga: 100% -> 86% |
| 2024-06-26 | 41 -> 35 | 275.55 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 537 |
|
20/42 | 86% | 2.40 | ONLINE | Spring online tournament 2024 |
| 2 | 373 |
|
43/68 | 29% | 3.00 | ONLINE | Double Tournament with Naga |
| 3 | 460 |
|
48/88 | 0% | 3.25 | ONLINE | Winter Team Fight |
| 4 | 194 |
|
84/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup |
| 5 | 538 |
|
19/40 | 0% | 2.40 | ONLINE | Spring Online Tournament |
| 6 | 474 |
|
72/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup |
| 7 | 105 |
|
129/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 |
| 8 | 0 |
|
20/20 | 0% | 1.90 | ONLINE | IORMC Qualifiers 2019 |
| 9 | 900 |
|
5/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament |
| 10 | 236 |
|
43/56 | 0% | 2.80 | ONLINE | Summer Online Tournament |
| 11 | 892 |
|
10/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup |
| 12 | 587 |
|
27/64 | 0% | 2.95 | ONLINE | Winter Online Tournament |
| 13 | 681 |
|
16/48 | 0% | 2.00 | ONLINE | Winter riichi-blitz 2017 |
| 14 | 30 |
|
66/68 | 0% | 2.40 | ONLINE | Autumn riichi-blitz 2016 |