Ratnikova Anna
From Samara, Russia
EMA: 15990370
Online rating
Rating date Oct. 31, 2026 (latest changes Oct. 31, 2026).
18 place (597.74).
how we calculated rating score
max_coefficients = (4.45 * 0.86 + 4.45 * 0.57 + 2.20 * 1) = 8.556825
p1 = (338.03 * 4.45 * 0.57 + 272.73 * 2.20 * 0.71 + 797.30 * 4.45 * 0.86 + 888.89 * 1.80 * 1 + 0) / (4.45 * 0.57 + 2.20 * 0.71 + 4.45 * 0.86 + 1.80 * 1 + 1) = 552.6568319167508
p2 = (797.30 * 4.45 * 0.86 + 888.89 * 1.80 * 1 + 338.03 * 4.45 * 0.57) / max_coefficients = 642.8178676086047
score = 552.6568319167508 * 0.5 + 642.8178676086047 * 0.5 = 597.7373497626777
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-31 | 18 | 609.92 -> 597.74 |
Kawa-league, season 2: 100% -> 86% |
| 2026-10-27 | 18 | 593.67 -> 609.92 |
Kawa-league, season 1: 71% -> 57% |
| 2026-10-25 | 19 -> 18 | 590.48 -> 593.67 | |
| 2026-09-21 | 20 -> 19 | 590.48 | |
| 2026-09-05 | 21 -> 20 | 586.89 -> 590.48 |
Summer online tournament 2025: 86% -> 71% |
| 2026-08-27 | 23 -> 21 | 573.08 -> 586.89 |
Kawa-league, season 1: 86% -> 71% |
| 2026-07-18 | 24 -> 23 | 573.08 | |
| 2026-07-05 | 24 | 569.95 -> 573.08 |
Summer online tournament 2025: 100% -> 86% |
| 2026-07-04 | 23 -> 24 | 569.95 | |
| 2026-06-27 | 22 -> 23 | 557.84 -> 569.95 |
Kawa-league, season 1: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 889 |
|
🥉 | 3/19 | 100% | 1.80 | ONLINE | Yagi Keiji Cup [Tenhou] | Russia |
| 2 | 797 |
|
16/75 | 86% | 4.45 | ONLINE | Kawa-league, season 2 | Russia | |
| 3 | 273 |
|
25/34 | 71% | 2.20 | ONLINE | Summer online tournament 2025 | Russia | |
| 4 | 338 |
|
48/72 | 57% | 4.45 | ONLINE | Kawa-league, season 1 | Russia | |
| 5 | 886 |
|
5/36 | 0% | 3.70 | ONLINE | Shimmer League | Moscow | |
| 6 | 800 |
|
12/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia | |
| 7 | 103 |
|
79/88 | 0% | 3.25 | ONLINE | Winter Team Fight | Russia | |
| 8 | 519 |
|
14/28 | 0% | 2.10 | ONLINE | Autumn Online Tournament | Russia | |
| 9 | 372 |
|
28/44 | 0% | 2.50 | ONLINE | Summer Online Tournament | Russia | |
| 10 | 650 |
|
37/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 11 | 586 |
|
42/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 12 | 655 |
|
20/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia | |
| 13 | 465 |
|
39/72 | 0% | 3.05 | ONLINE | Summer Tournament | Russia | |
| 14 | 711 |
|
40/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia | |
| 15 | 636 |
|
53/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |