| RK | LN | Name | Time | Gap | FINA | Q? |
|---|---|---|---|---|---|---|
| 1 | 6 | Őry Gréta (2015)Bohóchal | 49.02R:0.69 | - | 111 | |
| 2 | 5 | Katernák Anna Emma (2014)Bohóchal | 49.17R:0.85 | 00.15 | 110 | |
| 3 | 3 | Szabadházi Abigél Karolina (2017)Bohóchal | 52.80R:0.75 | 03.78 | 89 | |
| 4 | 4 | Wang Zihan (2016)Darnyi Tamás SC | 53.72R:0.69 | 04.70 | 84 |