Laura Halford claimed the 2015 rhythmic gymnastics all-around title at the British Championships Series.
The Welsh athlete retained her British title with a score of 58.200 after her hoop, ball, club and ribbon routines.
Her Esprit Rhythmic Gymnastics Club team-mate Stephani Sherlock took silver with 55.800 and 2012 Olympian Lynne Hutchison claimed bronze with 55.150.
"My first routines didn't go to plan so I had to really fight back and perform at my best to take the gold," she said.
"So I'm really pleased to have done that. I definitely felt more pressure and expectation coming in to this and to win again is just as good if not better than the first time."
The 19-year-old's victory in Liverpool on Thursday completed a hat-trick of senior titles after her successes in 2013 and 2014.
The national title adds to the three Commonwealth Games medals Halford won for Wales at Glasgow 2014.