 | 50m femenino con 19 años |
| Tiempo | Nadador | Año | Localización |
| 29.84 | Iria G. Lemos Fernández | 2025 | FRIGSA |
| 30.37 | Iria G. Lemos Fernández | 2025 | FRIGSA |
| 30.79 | Iria G. Lemos Fernández | 2025 | FRIGSA |
| 30.91 | Naiara Eijo Gil | 2025 | Rías do Sur |
| 30.98 | Naiara Eijo Gil | 2025 | FRIGSA |
| 31.07 | Naiara Eijo Gil | 2025 | FRIGSA |
| 31.31 | Naiara Eijo Gil | 2025 | FRIGSA |
| 31.31 | Naiara Eijo Gil | 2025 | ÁLVARO PINO |
| 31.40 | Naiara Eijo Gil | 2025 | FERROL |
| 31.41 | Naiara Eijo Gil | 2025 | FRIGSA |
| 31.53 | Naiara Eijo Gil | 2025 | RÍAS DO SUR |
| 31.97 | Naiara Eijo Gil | 2025 | AS LAGOAS |
| 32.36 | Irene Fernández Pardo | 2020 | ÁLVARO PINO |
| 32.39 | Sofía C. González | 2025 | AS LAGOAS |
| 32.42 | Naiara Eijo Gil | 2025 | FRIGSA |
| 32.52 | Naiara Eijo Gil | 2025 | FRIGSA |
| 32.63 | Naiara Eijo Gil | 2025 | FRIGSA |
| 32.74 | Naiara Eijo Gil | 2025 | PONTEAREAS |
| 32.81 | Naiara Eijo Gil | 2025 | FRIGSA |
| 33.05 | Naiara Eijo Gil | 2025 | FRIGSA |
| 33.15 | Sofía C. González | 2025 | FRIGSA |
| 33.17 | Naiara Eijo Gil | 2025 | FERROL |
| 33.25 | Sofía C. González | 2025 | ÁLVARO PINO |
| 33.37 | Naiara Eijo Gil | 2025 | AS LAGOAS |
| 33.53 | Sara Ibáñez Carrera | 2020 | ÁLVARO PINO |
| 33.67 | Sara Ibáñez Carrera | 2020 | ÁLVARO PINO |
| 34.04 | Sofía C. González | 2025 | CARBALLO CALERO |
| 34.09 | Naiara Eijo Gil | 2025 | FRIGSA |
| 34.20 | Naiara Eijo Gil | 2025 | FRIGSA |
| 34.97 | Irene Fernández Pardo | 2020 | ÁLVARO PINO |
