Ratnikova Anna
From Samara, Russia
EMA: 15990370
Online rating
Rating date June 28, 2025 (latest changes June 28, 2025).
36 place (405.13).
how we calculated rating score
max_coefficients = (4.45 * 1 + 3.70 * 0.86 + 3.05 * 1) = 10.67127
p1 = (338.03 * 4.45 * 1 + 885.71 * 3.70 * 0.86 + 0 + 0 + 0) / (4.45 * 1 + 3.70 * 0.86 + 1 + 1 + 1) = 406.07855746064257
p2 = (885.71 * 3.70 * 0.86 + 338.03 * 4.45 * 1) / max_coefficients = 404.175885344481
score = 406.07855746064257 * 0.5 + 404.175885344481 * 0.5 = 405.12722140256176
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-27 | 15 -> 36 | 450.97 -> 405.13 |
Kawa-league, season 1: 0% -> 100% |
| 2024-06-22 | 13 -> 15 | 450.97 | |
| 2024-06-16 | 42 -> 13 | 237.47 -> 450.97 |
Shimmer League: 0% -> 100% |
| 2023-11-11 | 42 | 232.16 -> 237.47 | |
| 2023-11-01 | 52 -> 42 | 621.39 -> 232.16 | |
| 2021-02-01 | 52 | 621.39 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 338 |
|
48/72 | 100% | 4.45 | ONLINE | Kawa-league, season 1 | Russia | |
| 2 | 886 |
|
5/36 | 86% | 3.70 | ONLINE | Shimmer League | Moscow | |
| 3 | 800 |
|
12/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia | |
| 4 | 103 |
|
79/88 | 0% | 3.25 | ONLINE | Winter Team Fight | Russia | |
| 5 | 519 |
|
14/28 | 0% | 2.10 | ONLINE | Autumn Online Tournament | Russia | |
| 6 | 372 |
|
28/44 | 0% | 2.50 | ONLINE | Summer Online Tournament | Russia | |
| 7 | 650 |
|
37/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 8 | 586 |
|
42/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 9 | 655 |
|
20/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia | |
| 10 | 465 |
|
39/72 | 0% | 3.05 | ONLINE | Summer Tournament | Russia | |
| 11 | 711 |
|
40/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 12 | 636 |
|
53/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |