| Tiempo | Nadador | Año | Localización |
| 44.13 | Nuria Mutilba Obregón | 2017 | RÍAS DO SUR |
| 45.44 | Nuria Mutilba Obregón | 2017 | RCN VIGO |
| 47.01 | Nuria Mutilba Obregón | 2017 | FRIGSA |
| 47.46 | Margarita Del Amo Blanco | 2015 | LUGO |
| 48.52 | Margarita Del Amo Blanco | 2015 | BERGANTIÑOS |
| 51.49 | Karina H. Corredoira | 2022 | ÁLVARO PINO |
| 51.54 | Karina H. Corredoira | 2022 | AS POZAS |
| 51.55 | Karina H. Corredoira | 2022 | Alvaro Pino |
| 52.58 | Karina H. Corredoira | 2022 | Alvaro Pino |
| 59.86 | María C. Sánchez Barreiro | 2024 | Álvaro Pino |
| 59.96 | María C. Sánchez Barreiro | 2024 | Álvaro Pino |
| 01:00.10 | María C. Sánchez Barreiro | 2024 | Álvaro Pino |
| 01:01.58 | María C. Sánchez Barreiro | 2024 | RÍAS DO SUR |
| 01:01.96 | María C. Sánchez Barreiro | 2024 | Álvaro Pino |
| 01:02.03 | Gema P. Villanueva | 2022 | AS POZAS |
| 01:02.41 | María C. Sánchez Barreiro | 2024 | AS POZAS |
| 01:03.23 | Gema P. Villanueva | 2022 | ÁLVARO PINO |
| 01:03.76 | Gema P. Villanueva | 2022 | ÁLVARO PINO |
| 01:03.93 | Gema P. Villanueva | 2022 | ÁLVARO PINO |
| 01:05.45 | María C. Sánchez Barreiro | 2024 | As Pozas |
