Ratnikova Anna
From Samara, Russia
EMA: 15990370
Online rating
Rating date July 25, 2025 (latest changes July 5, 2025).
33 place (438.01).
how we calculated rating score
max_coefficients = (4.45 * 1 + 3.70 * 0.86 + 3.05 * 1) = 10.67127
p1 = (272.73 * 2.20 * 1 + 885.71 * 3.70 * 0.86 + 338.03 * 4.45 * 1 + 0 + 0) / (2.20 * 1 + 3.70 * 0.86 + 4.45 * 1 + 1 + 1) = 415.6127048954976
p2 = (885.71 * 3.70 * 0.86 + 338.03 * 4.45 * 1 + 272.73 * 2.20 * 1) / max_coefficients = 460.401620425685
score = 415.6127048954976 * 0.5 + 460.401620425685 * 0.5 = 438.0071626605913
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-05 | 34 -> 33 | 405.13 -> 438.01 |
Summer online tournament 2025: 0% -> 100% |
| 2025-07-02 | 36 -> 34 | 405.13 | |
| 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 | |
| 2023-10-26 | 38 -> 42 | 269.00 -> 232.16 |
Summer Online Tournament: 71% -> 57% |
| 2023-10-17 | 41 -> 38 | 269.00 | |
| 2023-10-12 | 42 -> 41 | 269.00 | |
| 2023-10-10 | 43 -> 42 | 269.00 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 273 |
|
25/34 | 100% | 2.20 | ONLINE | Summer online tournament 2025 | Russia |
| 2 | 338 |
|
48/72 | 100% | 4.45 | ONLINE | Kawa-league, season 1 | Russia |
| 3 | 886 |
|
5/36 | 86% | 3.70 | ONLINE | Shimmer League | Moscow |
| 4 | 800 |
|
12/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia |
| 5 | 103 |
|
79/88 | 0% | 3.25 | ONLINE | Winter Team Fight | Russia |
| 6 | 519 |
|
14/28 | 0% | 2.10 | ONLINE | Autumn Online Tournament | Russia |
| 7 | 372 |
|
28/44 | 0% | 2.50 | ONLINE | Summer Online Tournament | Russia |
| 8 | 650 |
|
37/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia |
| 9 | 586 |
|
42/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia |
| 10 | 655 |
|
20/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia |
| 11 | 465 |
|
39/72 | 0% | 3.05 | ONLINE | Summer Tournament | Russia |
| 12 | 711 |
|
40/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia |
| 13 | 636 |
|
53/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |