Siobhan-Marie O'Connor struck Commonwealth Games gold after a sensational swim in the 200m individual medlay final.
The 18-year-old from Bitton stormed to her fifth medal of Glasgow 2014 in a new Games and British record of 2mins 08.20secs, finishing more than two seconds ahead of Australian rival Alicia Coutts (2:10.30). O'Connor's time was also the fastest in the world this year.
Home favourite Hannah Miley took bronze at the Tollcross International Swimming Centre, with Sophie Allen – who trains alongside O'Connor at the University of Bath – sixth in 02:12.00.
"I've had a really good week up to this point and things went my way today," said O'Connor.
"I didn't come into the meet thinking a gold medal was a realistic target because there were some amazing swimmers in that race.
"I've trained so hard this year and that was the dream result. I was just one race away from making it a better week than I could have ever imagined and I'm absolutely over the moon to do it.
"The 200m individual medley is the event that I've grown up with and it's the one, world ranking-wise, that I'm up there in. Being a medley swimmer has brought on all my strokes each year at different times."
Former St Gregory's Catholic College pupil O'Connor had already won a hat-trick of silver medals in the 100m butterfly, 200m freestyle and 4x100m freestyle relay, together with a bronze in the 4x200m freestyle relay on Saturday night.
There was disappointment for Bath-based Lizzie Simmonds on Sunday evening, however, after she finished just outside the medals in the 200m backstroke final.
Simmonds clocked 02:09:29 to finish fourth behind Australian winner Belinda Hocking, whose winning time of 02:07:24 was a new Games record.
"Fourth place is a horrible place to be," 23-year-old Simmonds told BBC Sport. "It was always going to be tough but I'm gutted not to get a medal."
Image may be NSFW.
Clik here to view.