Ratnikova Anna
From Samara, Russia
EMA: 15990370
Online rating
Rating date April 8, 2023 (latest changes April 8, 2023).
37 place (475.19).
how we calculated rating score
max_coefficients = (2.80 * 1 + 2.30 * 1 + 2.60 * 0.71) = 6.95718
p1 = (650.49 * 3.45 * 0.14 + 103.45 * 3.25 * 0.57 + 800 * 2.80 * 1 + 372.09 * 2.50 * 0.29 + 518.52 * 2.10 * 0.43) / (3.45 * 0.14 + 3.25 * 0.57 + 2.80 * 1 + 2.50 * 0.29 + 2.10 * 0.43) = 515.2397896920111
p2 = (800 * 2.80 * 1 + 518.52 * 2.10 * 0.43 + 650.49 * 3.45 * 0.14) / max_coefficients = 435.1461367968056
score = 515.2397896920111 * 0.5 + 435.1461367968056 * 0.5 = 475.19296324440836
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-04-06 | 52 -> 37 | 621.39 -> 475.19 | |
| 2021-02-01 | 52 | 621.39 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 800 |
|
12/56 | 100% | 2.80 | ONLINE | Summer Online Tournament | Russia |
| 2 | 103 |
|
79/88 | 57% | 3.25 | ONLINE | Winter Team Fight | Russia |
| 3 | 519 |
|
14/28 | 43% | 2.10 | ONLINE | Autumn Online Tournament | Russia |
| 4 | 372 |
|
28/44 | 29% | 2.50 | ONLINE | Summer Online Tournament | Russia |
| 5 | 650 |
|
37/104 | 14% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia |
| 6 | 586 |
|
42/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia |
| 7 | 655 |
|
20/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia |
| 8 | 465 |
|
39/72 | 0% | 3.05 | ONLINE | Summer Tournament | Russia |
| 9 | 711 |
|
40/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia |
| 10 | 636 |
|
53/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |